Gorm Subquery

mysql - How can I LEFT JOIN Count in Subquery - Get link; Facebook; Twitter; Pinterest; Email; Other Apps; April 15, 2010 i have query, it's not throwing errors me. Records that have equal values in that field are then sorted by the value in the second field listed, and so on. Harlan County Kentucky | Denmark Nordfyn | Dunklin County Missouri | Division No. Description. Gorm (Golang) and database with Single Table Inheritance "type" column I'm experimenting with using Go to read from a database that's been part of an existing Rails app. 7, "Server System Variables". The following are top voted examples for showing how to use org. Not all operation is just select, update, and delete. I wrote a codegen ORM in a weekend that turned out much more pleasant to use than anything like gorm, not least because everything was just plain-ol'-Golang-code. Hibernate Criteria API is a more object oriented and elegant alternative to Hibernate Query Language (HQL). Model Name string CompanyID uint // Disable auto upate/create associations, will update reference for records have primary key Company Company `gorm:"save_associations:false"` // Disable create associations w/0 primary key, will update reference for records have primary key Company1 Company `gorm:"association_autocreate. But before we talk about HQL and its use cases, there is one important thing to realize. Consider the following query:. Action: Use ANY, ALL, IN, or NOT IN to specify which values to compare or reword the query so only one row is retrieved. Subqueries only in the where/having-clause and you can only fetch one column is very limited. 2019阿里云全部产品优惠券(新购或升级都可以使用,强烈推荐). any idea? I think that a correlated subquery is the easiest way to do this. CustomerId = C. javascript - Get the closest sibling of the data i string - How do I convert a deliminated file in ba c# mysqlcommnand insert into mysql database - javascript - Neither model or setupController call google app engine - gcloud is stuck when trying to javascript - Why does this event listener not work. 此外值得关注的改进有: Standalone GORM & GSP Static Compilation Asset Pipeline Plugin GORM Subqueries New Maven Plugin 完. GORM is Grails' object relational mapping (ORM) implementation. 7 Object Relational Mapping (GORM) 8 The Web Layer. Currency I was looking through gorm. 6 Object Relational Mapping (GORM) Domain classes are core to any business application. For more information on using the where method see the dedicated section on Where Queries and Detached Criteria in the user guide. What you're seeing in the "some examples" link is a save to the main domain object Author, which gets persisted first, and then the other properties will make it in the database with a proper id to link back to. Moreover, the queries we generate do not contain nested subqueries nor procedures. When a subquery is placed within the column list it is used to return single values. GROUP BY typically also involves aggregates: COUNT, MAX, SUM, AVG, etc. name (optional): the fully qualified Java class name of the persistent class or interface. Bacterial Genome Instability. ORACLE-BASE - Row Limiting Clause for Top-N Queries in Oracle Database 12c Release 1 (12. Showing posts from July, 2015 Show all css - Floats affecting other divs? -. I would like to know how I can use a subquery in FROM clause using gorm. The where method is a powerful new type-safe querying option introduced in Grails 2. 12 Validation. groovy /* Suppose we need a query searching for all Equipments that are not being used in any. Even correlated subqueries (subqueries that refer to an alias in the outer query) are allowed. class, all the select data (*) will match to your Stock. If we want to find all the dogs that are of breed with a long name, we can do this: Dogs with a long. groovy中加入,就可以使用. Under the hood it uses Hibernate 3 (an extremely popular and flexible open source ORM solution) but because of the dynamic nature of Groovy, the fact that it supports both static and dynamic typing, and the convention of Grails there is less configuration involved in creating. re: having the other developer who's a genius at SQL, so what?. For more information on using the where method see the dedicated section on Where Queries and Detached Criteria in the user guide. The following are top voted examples for showing how to use org. Not all operation is just select, update, and delete. The name (optionally schema-qualified) of the table to delete rows from. GORM is Grails' object relational mapping (ORM) implementation. How to create sub query in Grails. Records are sorted first by the first field listed after ORDER BY. Note: You cannot use the methods described by this article to create an index for a table in a web database. GitHub is home to over 36 million developers working together to host and review code, manage projects, and build software together. Intended Audience Introduction Database schema Form design - Simple - Complex - Complex update Summary Amendment History Comments Intended Audience. The SQL COUNT function returns the number of rows in a query. Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. operator[] overloading; Swift optionals and equality operator; Converting json_decode to an object; Is dimensional modeling feasible with Amazon Redshift. For more information on using the where method see the dedicated section on Where Queries and Detached Criteria in the user guide. A foreign key is a field in a table that matches another field of another table. 《GORM 中文文档》 《Laravel 中文文档》 《Rust 编程语言》 《 Laravel 项目开发规范 5. You can vote up the examples you like and your votes will be used in our system to generate more good examples. even it looks that detached criteria are supported by DetachedCriteria. 但我们实际通常是允许为空的. But for everything else, I used Criteria Builder which is just the Hibernate Criteria API with builder syntax. Tag: hibernate,grails,gorm,named-query. CriteriaQuery. I have been unable to find the syntax for running subqueries using criterias/named subqueries. Hibernate may not be the best solution for data-centric applications that only use stored-procedures to implement the business logic in the database, it is most useful with object-oriented domain models and business logic in the Java-based middle-tier. Query/SubQuery docs should be updated as the given example does not work and SubQuery() is not mentioned anywhere outside godoc. I am currently trying to persist the following class with the GORM MongoDB plugin for grails: class Result { String url def Result(){ } static constraints = { } stat the-mongodb MongoDB is a scalable, high-performance, open source, document-oriented database. This is a problem that goes beyond the usual ORM antipatterns and bad database designs and becomes its own special kind of hell, because it makes code far harder to reason about and thus far harder to review, in a way that I don't remember encountering in Hibernate, Gorm, or anything else. Hot Questions. I would like to know how I can use a subquery in FROM clause using gorm. GORM Subqueries - GORM has been enhanced, with extensive support for correlated subqueries. Embedded Mode. hibernate=1. For more information on using the where method see the dedicated section on Where Queries and Detached Criteria in the user guide. type User struct { gorm. grails dynamically add gorm subquery to existing query I would like to have a util for building queries, so that I can add specificity to a common query rather than hard coding similar queries over and over again. This allows you to use the same query over and over without having to constantly open it in Design view to edit the criteria. A few of the models and therefore tables use single table inheritance via a type column. A subquery is a SELECT statement that is nested within another SELECT statement and which return intermediate results. Summary: in this tutorial, you will learn about MySQL foreign key and how to create, add, and drop foreign key constraints in MySQL. In other words you get N+1 queries (if you exclude the original one to get the airport). operator[] overloading; Swift optionals and equality operator; Converting json_decode to an object; Is dimensional modeling feasible with Amazon Redshift. 12 Validation. createQuery( Ereturn. Hibernate Criteria Builder; If the database query is very simple, dynamic finders are a good choice. Preview of upcoming Grails 3. For nearly every case where you want to store a relationship between two documents, use manual references. I am attempting to delete and create data using GORM, in the Background phase of my cucumber tests. 只要在grails-app/conf/Config. 0 was released in conjunction with Grails 3. For more information on using the where method see the dedicated section on Where Queries and Detached Criteria in the user guide. If you want to retrieve just the kittens that match the criteria, you must use a ResultTransformer. The where method is a powerful new type-safe querying option introduced in Grails 2. properties and change the hibernate plugin row to plugins. updated by sending it the save message. groovy /* Suppose we need a query searching for all Equipments that are not being used in any. Building Detached Criteria import grails. You can include additional fields in the ORDER BY clause. Description. The result returned is no different than the expression “2 + 2. String propertyName, QueryableCriteria propertyValue) Creates a subquery criterion that ensures the given property is greater than all the given returned values: Criteria. 4 发布,该版本包含 Groovy 2. In Hibernate one would do a "CriteriaSpecification. Under the hood it uses Hibernate 3 (an extremely popular and flexible open source ORM solution) but because of the dynamic nature of Groovy, the fact that it supports both static and dynamic typing, and the convention of Grails there is less configuration involved in creating. How to create sub query in Grails. 对大多数查询,包括条件查询而言,因为查询缓存的失效(invalidation)发生得太频繁,查询缓存不是非常高效。. Records that have equal values in that field are then sorted by the value in the second field listed, and so on. Descubre (¡y guarda!) tus propios Pines en Pinterest. 13 The Service Layer. Even correlated subqueries (subqueries that refer to an alias in the outer query) are allowed. SELECT er from ereturn er JOIN FETCH product_item pi ON pi. In this example, you tell Hibernate to return you a Stock. re: having the other developer who's a genius at SQL, so what?. I am solving this temporary doing this: func GetUserProviders(userID int) ([]. 解决groovy - grails dynamically add gorm subquery to existing query. For storage engines supporting foreign keys, MySQL rejects any INSERT or UPDATE operation that attempts to create a foreign key value in a child table if there is no a matching candidate key value in the parent table. isSystem is true or a row exist in table share with share. groovy中加入,就可以使用. The query is a standard nested query which works in for example. A subquery can be nested inside other subqueries. I have been unable to find the syntax for running subqueries using criterias/named subqueries. For more information on using the where method see the dedicated section on Where Queries and Detached Criteria in the user guide. I always hear newer and newer exotic way to store different types of data in MySQL. java,hibernate,jpa,playframework,playframework-1. How to create sub query in Grails. Querying computed fields in GORM (Groovy) - Codedump. But before we talk about HQL and its use cases, there is one important thing to realize. The where method is a powerful new type-safe querying option introduced in Grails 2. Of all the main ORM's out there, Pony is the one with the most intuitive interface, most of the time when you get one of those "I bet this should work" moments, it actually does!. Constructors ; Constructor and description; Query. The following are top voted examples for showing how to use org. Edit application. select topic. You can vote up the examples you like and your votes will be used in our system to generate more good examples. This sample is way too simplistic to make a blanket statement such as the first paragraph in the conclusion. DB can't preload field currencies for model. id in ( select susr. As a consequence provides a query interface that does not rely on string-based of this ‘monkey-patching’3 any object, whose class is a sub- query encoding, but instead emulates the Smalltalk collec- class of Object , within the application can be stored and tion protocol [8]. 0 was released in conjunction with Grails 3. The fantastic ORM library for Golang, aims to be developer friendly. JPA Tutorial - JPA OneToOne Map Cascade All Example « Previous; Next » The following code shows how to set cascade action for one to one mapping. 提示 当通过结构体进行查询时,GORM将会只通过非零值字段查询,这意味着如果你的字段值为0,'', false 或者其他 零值时,将不会被用于构建查询条件,例如:. NET developers to work with a database using. Ask Question Asked 2 years, 11 months ago. New Maven Plugin - The Maven plugin has been rewritten to use Aether for dependency resolution and now works with multiple versions of Grails. GORM will execute a single SQL query to fetch the Airport instance, another to get its flights, and then 1 extra query for each iteration over the flights association to get the current flight's destination. GitHub is home to over 36 million developers working together to host and review code, manage projects, and build software together. DB's docs and sources but can't seem to understand the purpose of Preload. 完整内容请看 comprehensive guide to all the new features. getCriteriaBuilder(); CriteriaQuery criteria = builder. For more information on using the where method see the dedicated section on Where Queries and Detached Criteria in the user guide. 7, “Server System Variables”. createQuery( Ereturn. 6 Object Relational Mapping (GORM) Domain classes are core to any business application. Creates a subquery criterion that ensures the given property is greater than or equals to all the given returned values: Criteria: geAll(java. For storage engines supporting foreign keys, MySQL rejects any INSERT or UPDATE operation that attempts to create a foreign key value in a child table if there is no a matching candidate key value in the parent table. 完整内容请看 comprehensive guide to all the new features. Object Represents criteria that is not bound to the current connection and can be built up and re-used at a later date. See the following examples :. GroovyObjectSupport Creates a subquery criterion that ensures the. It contains a simple SQL query builder and manages mapping between SQL and structs. 8 and SELECT for details. Grails的GORM默认是设置所有的字段都不能空的. id) as numRes, (select count(*) from Subscription where subscriptionOf. CUT YOUR GRAILS APPLICATION TO PIECES BUILD FEATURE PLUGINS execute subqueries and execute batch updates/deletes, etc. But before we talk about HQL and its use cases, there is one important thing to realize. The subquery can be nested inside a SELECT, INSERT, UPDATE, or DELETE statement or inside another subquery. Nested subqueries. Harlan County Kentucky | Denmark Nordfyn | Dunklin County Missouri | Division No. When a failure occurs, Zorro opportunistically exploits vertex replication inherent in today's graph processing systems to quickly rebuild the state of failed servers. New Maven Plugin - The Maven plugin has been rewritten to use Aether for dependency resolution and now works with multiple versions of Grails. Grails 是一套用于快速 Web 应用开发的开源框架,它基于 Groovy 编程语言,并构建于 Spring、Hibernate 和其它标准 Java 框架之上,从而为大家带来一套能实现超高生产力的一站式框架。. Subqueries only in the where/having-clause and you can only fetch one column is very limited. Category: None Tags: grails-domain-class, nosql, grails, node. id) as numRes, (select count(*) from Subscription where subscriptionOf. 调试经验——ORA-01427(单行查询返回多行结果,single-row subquery returns more than one row)的解决办法 gorm---最全讲解. Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. If you continue browsing the site, you agree to the use of cookies on this website. NET developers to work with a database using. Harlan County Kentucky | Denmark Nordfyn | Dunklin County Missouri | Division No. grails,gorm,grails-2. The following are top voted examples for showing how to use org. GORM recipes demonstrates how to effectively use the GORM persistence provider in a Grails 2. How to create sub query in Grails. ORACLE-BASE - Row Limiting Clause for Top-N Queries in Oracle Database 12c Release 1 (12. One of the most common tasks, when you work with PostgreSQL, is to query data from tables by using the SELECT statement. New Maven Plugin - The Maven plugin has been rewritten to use Aether for dependency resolution and now works with multiple versions of Grails. I want to use an inherited property within a named query of a derived instance, in order that I can provide a custom sort of. Even correlated subqueries (subqueries that refer to an alias in the outer query) are allowed. CriteriaBuilder ("rawtypes") public class CriteriaBuilder extends groovy. These examples are extracted from open source projects. @OneToOne(cascade=CascadeType. UPSERT is a special syntax addition to INSERT that causes the INSERT to behave as an UPDATE or a no-op if the INSERT would violate a uniqueness constraint. In return, OCI shall not use Your Contributions in a way that is contrary to the public benefit or inconsistent with the Apache License v. 7) - Free ebook download as PDF File (. The where method is a powerful new type-safe querying option introduced in Grails 2. graemerocher / raw-hibernate-vs-gorm-correlated-subqueries. A foreign key is a field in a table that matches another field of another table. 3 和 Spring 4. GORM (Grails Object Mapping) Grails is a framework used to build web applications with the Groovy programming language. grails,gorm I think this is what you're looking for DomainClass. id) as numRes, (select count(*) from Subscription where subscriptionOf. For example, the following query returns the employees with the 10 smallest employee numbers. I have been unable to find the syntax for running subqueries using criterias/named subqueries. Description. I am attempting to delete and create data using GORM, in the Background phase of my cucumber tests. You can vote up the examples you like and your votes will be used in our system to generate more good examples. A subquery is a SELECT statement that is nested within another SELECT statement and which return intermediate results. I thought that is the 'preloaded schema/tables/rows' that you can use afterwards' but cannot somehow use it that way. Nested subqueries. Edit application. java,hibernate,jpa,playframework,playframework-1. the-mongodb. Sometimes we need subquery (select from select) or complex join that requires more time to debug and test when using ORM syntax rather using plain SQL. Is there any way to use the SubQuery function in Select?? I have seen it as part of Where clause, but I need on select. GORM支持一下查询 If subqueries or associations are used, one may end up with the same row multiple times in the result set,. 此外值得关注的改进有: Standalone GORM & GSP Static Compilation Asset Pipeline Plugin GORM Subqueries New Maven Plugin 完整内容请看 comprehe. Not all operation is just select, update, and delete. Criteria and Inner joins Few posts ago we saw HQL's extensive support for joins. Browse other questions tagged grails gorm or ask your own question. beef9999 closed this Apr 6, 2017. 7 Object Relational Mapping (GORM) 8 The Web Layer. 13, and cucumber 0. The following are top voted examples for showing how to use org. Hibernate will generate the necessary unique key and nullability constraints and, as a result, your mapping will be more self-documenting. Here are some examples if you use Tomcat or JBoss. This is the fourth in a series of articles about subqueries. Tag: hibernate,grails,gorm,named-query. Object Represents criteria that is not bound to the current connection and can be built up and re-used at a later date. but in example, appears event handler in same dll (and assume, same class) sbuton() method. http://blog. For nearly every case where you want to store a relationship between two documents, use manual references. See more details on jOOQ Homepage and in the jOOQ Tutorial. Building Detached Criteria import grails. DISTINCT_ROOT_ENTITY". CriteriaBuilder ("rawtypes") public class CriteriaBuilder extends groovy. We're the creators of MongoDB, the most popular database for modern apps, and MongoDB Atlas, the global cloud database on AWS, Azure, and GCP. For nearly every case where you want to store a relationship between two documents, use manual references. Recursos TAC ha descubierto este Pin. To the points others have made about using ORMs and raw SQL mixed - I agree, and it mirrors my own experiences. Represents criteria that is not bound to the current connection and can be built up and re-used at a later date. GORM makes it exceptionally easy to do the simple things, but for a new user, you can quickly hit a wall when you want to do something which would be simple to do in SQL. Raw Hibernate vs GORM for Hibernate Correlated Subqueries - raw-hibernate-vs-gorm-correlated-subqueries. @Douglas: hv is an alias for the derived table (aka "sub-query"). id, (select count(*) from Resource where resourceOf. It supports a large number of languages and application development platforms. Scribd is the world's largest social reading and publishing site. Using Subqueries in the Select Statement. All I really needed to write was the minimal Go code to dump a schema from Postgres, and then a bunch of text/template templates for all the functions I wanted. That is to say K-means doesn't 'find clusters' it partitions your dataset into as many (assumed to be globular - this depends on the metric/distance used) chunks as you ask for by attempting to minimize intra-partition distances. beef9999 closed this Apr 6, 2017. with=myuser Share may or may not have any row for a form+user hope. When a failure occurs, Zorro opportunistically exploits vertex replication inherent in today's graph processing systems to quickly rebuild the state of failed servers. Summary: in this tutorial, you will learn about MySQL foreign key and how to create, add, and drop foreign key constraints in MySQL. The following code is from Department. Hot Questions. When using with Multiple Immediate Methods, won’t pass those conditions to later immediate methods. 2019阿里云全部产品优惠券(新购或升级都可以使用,强烈推荐). 3 和 Spring 4. class, all the select data (*) will match to your Stock. Under the covers the facade hides away details associated with getting connections, constructing and configuring statements, interacting with the connection, closing resources and logging errors. Creates a subquery criterion that ensures the given property is greater than or equals to all the given returned values: Criteria: geAll(java. id) as numSubs from. If this attribute is missing, it is assumed that the mapping is for a non-POJO entity. Military operational environments differ a lot depending on climate and vegetation. Query/SubQuery docs should be updated as the given example does not work and SubQuery() is not mentioned anywhere outside godoc. Here's a case study to retrieve a list of StockDailyRecord, with optional search criteria - start. GORM Subqueries - GORM has been enhanced, with extensive support for correlated subqueries. 8 and SELECT for details. The result is better code completion for ID with Java and the potential for more GORM implementations for other types of data stores. Object Represents criteria that is not bound to the current connection and can be built up and re-used at a later date. 0 continued to separate the GORM API from the Grails core APIs and was the first version to be support standalone execution outside of Grails. The fantastic ORM library for Golang, aims to be developer friendly - jinzhu/gorm. This is a problem that goes beyond the usual ORM antipatterns and bad database designs and becomes its own special kind of hell, because it makes code far harder to reason about and thus far harder to review, in a way that I don't remember encountering in Hibernate, Gorm, or anything else. SQL - How do you print the last n rows or the first n rows of a table ?. Above line fails with below error: Method on class [com. How to set the hibernate dialect in Grails 3. Well the use case we had disappeared and I didn't do much of anything with dynamic criteria queries until recently. Groovy Calamari is a curated publication full of interesting, relevant links about Microservices, Micronaut and Groovy Ecosystem (Grails, Gradle, ). Cause: The outer query must use one of the keywords ANY, ALL, IN, or NOT IN to specify values to compare because the subquery returned more than one row. 13 The Service Layer. For more information on using the where method see the dedicated section on Where Queries and Detached Criteria in the user guide. Query/SubQuery docs should be updated as the given example does not work and SubQuery() is not mentioned anywhere outside godoc. Tag: hibernate,grails,gorm,named-query. Instead of providing a list of literal values, the subquery gets a list of values from one or more tables and uses them as the input values of the IN operator. id) as numSubs from. id in ( select susr. Creates a subquery criterion that ensures the given property is greater than or equals to all the given returned values: Criteria: geAll(java. Grails Gorm Queries Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. GORM is Grails' object relational mapping (ORM) implementation. 目前 Grails 团队正在开发 Grails 3. with=myuser Share may or may not have any row for a form+user hope. @Douglas: hv is an alias for the derived table (aka "sub-query"). GitHub Gist: star and fork graemerocher's gists by creating an account on GitHub. Performance of a web database depends on the performance of several factors such as the SharePoint server that is hosting the web database. How to know an object has changed compared to database. java,hibernate,jpa,playframework,playframework-1. 转 DEPENDENT SUBQUERY” 和 “SUBQUERY” 2016年06月22日 19:24:00 weixin_34379433 阅读数:14. 解决groovy - grails dynamically add gorm subquery to existing query. A subquery can be nested inside other subqueries. Technology and tools selection. id WHERE pi. If ONLY is specified before the table name, matching rows are deleted from the named table only. Penetration testing---the process of probing a deployed system for security vulnerabilities---involves a fundamental tension. For more information on using the where method see the dedicated section on Where Queries and Detached Criteria in the user guide. Summary: in this tutorial, you are going to learn how to use basic PostgreSQL SELECT statement to query data from a table. GroovyObjectSupport Abstract criteria builder implementation Authors: Graeme Rocher. After several. A subquery is usually added within the WHERE Clause of another SQL SELECT statement. GitHub Gist: star and fork graemerocher's gists by creating an account on GitHub. 2 Upgrade, Getting Cannot find plugin descriptor in plugin directory Exception It's looking for the 1. Query/SubQuery docs should be updated as the given example does not work and SubQuery() is not mentioned anywhere outside godoc. Grails的GORM默认是设置所有的字段都不能空的. EF Core can serve as an object-relational mapper (O/RM), enabling. Inline Condition. In this talk, Grails project lead Graeme Rocher will present a preview of the much anticipating version 3. Easily organize, use, and enrich data — in real time, anywhere. It is much easier to throw native SQL against the database instead of using JPA when one need subqueries. The where method is a powerful new type-safe querying option introduced in Grails 2. We're the creators of MongoDB, the most popular database for modern apps, and MongoDB Atlas, the global cloud database on AWS, Azure, and GCP. id, (select count(*) from Resource where resourceOf. The following are top voted examples for showing how to use org. 0 release at SpringOne 2GX 2014. When using an inner join, there must be at least some matching data between two (or more) tables that are being compared. People are trying to solve the problem of storing complex and not necessary strictly structured data in databases which is fine. id in ( select susr. Using Subqueries in the Select Statement. GitHub Gist: star and fork graemerocher's gists by creating an account on GitHub. Military textiles with camouflage pattern are an important part of the protection measures for soldiers. GitHub is home to over 36 million developers working together to host and review code, manage projects, and build software together. 4 发布,该版本包含 Groovy 2. String name, QueryableCriteria subquery). Above line fails with below error: Method on class [com. You can include additional fields in the ORDER BY clause. since groovy provides syntactic sugar on top of jdbc, i'm wondering if provides way ease process? there easier way save or update record?note: know hibernate offers this, i'd rather stick groovy api. id) as numRes, (select count(*) from Subscription where subscriptionOf. If you continue browsing the site, you agree to the use of cookies on this website. This is not necessarily true if you're using HQL. It supports a large number of languages and application development platforms. Here are some examples if you use Tomcat or JBoss. The id and version properties are injected automatically. When a failure occurs, Zorro opportunistically exploits vertex replication inherent in today's graph processing systems to quickly rebuild the state of failed servers. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under  Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: