criteria

Criteria API - Using UPPER in a ElementCollection

由 ∥☆過路亽．° 提交于 2020-07-21 07:19:22
问题 I have a class @Entity public class Person{ ... @ElementCollection private Set<String> tags; ... } I want to use the JPA 2.0 Criteria API to search over these tags - but in a case insensitive way. Thus I want to both set the search parameter to UPPER and the column to UPPER (Pseudo-SQL: select p.* from Person p join Tags t on p.id=t.pId where upper(t.name)=upper('searchParameter'); ) Here is my code without the UPPER on the tags: CriteriaBuilder builder = this.em.getCriteriaBuilder();

Criteria API - Using UPPER in a ElementCollection

由 喜夏-厌秋 提交于 2020-07-21 07:19:12
问题 I have a class @Entity public class Person{ ... @ElementCollection private Set<String> tags; ... } I want to use the JPA 2.0 Criteria API to search over these tags - but in a case insensitive way. Thus I want to both set the search parameter to UPPER and the column to UPPER (Pseudo-SQL: select p.* from Person p join Tags t on p.id=t.pId where upper(t.name)=upper('searchParameter'); ) Here is my code without the UPPER on the tags: CriteriaBuilder builder = this.em.getCriteriaBuilder();

Criteria API - Using UPPER in a ElementCollection

由 回眸只為那壹抹淺笑 提交于 2020-07-21 07:19:09
问题 I have a class @Entity public class Person{ ... @ElementCollection private Set<String> tags; ... } I want to use the JPA 2.0 Criteria API to search over these tags - but in a case insensitive way. Thus I want to both set the search parameter to UPPER and the column to UPPER (Pseudo-SQL: select p.* from Person p join Tags t on p.id=t.pId where upper(t.name)=upper('searchParameter'); ) Here is my code without the UPPER on the tags: CriteriaBuilder builder = this.em.getCriteriaBuilder();

Finding a more efficient way of using SUM PRODUCT and COUNTIF

由 爷，独闯天下 提交于 2020-07-07 11:56:52
问题 I currently have this formula which works but it takes a few seconds for excel to catch up, and I was wondering if anyone knew about a more efficient way of handling this. Aside for it taking a few seconds to process when I drag the formula down excel doesn't update the new cells and eventually crashes the entire file. =SUMPRODUCT(((Paste!$B$2:$B$12000=A2))/COUNTIFS(Paste!$B$2:$B$12000,Paste!$B$2:$B$12000&"",Paste!$C$2:$C$12000,Paste!$C$2:$C$12000&"")) Sample Data: 回答1: Let's imagine the data

Finding a more efficient way of using SUM PRODUCT and COUNTIF

由 若如初见. 提交于 2020-07-07 11:55:28
问题 I currently have this formula which works but it takes a few seconds for excel to catch up, and I was wondering if anyone knew about a more efficient way of handling this. Aside for it taking a few seconds to process when I drag the formula down excel doesn't update the new cells and eventually crashes the entire file. =SUMPRODUCT(((Paste!$B$2:$B$12000=A2))/COUNTIFS(Paste!$B$2:$B$12000,Paste!$B$2:$B$12000&"",Paste!$C$2:$C$12000,Paste!$C$2:$C$12000&"")) Sample Data: 回答1: Let's imagine the data

Spring Specification - conjunction of Predicates

由 别说谁变了你拦得住时间么 提交于 2020-07-07 01:11:56
问题 I need a function that will be filter parameters and build query. I have 4 parameters therefore if I would try to implement query for each condition I would have to write 16 (2^4) implementations - it's not good idea. I try to improve my code with interface Specification from Spring Data JPA but I cannot create conjunction of predicates. Implementation of Specification interface : public class UserSpecification implements Specification<User> { private final UserSearchCriteria criteria; public

Spring Specification - conjunction of Predicates

由 人盡茶涼 提交于 2020-07-07 01:11:40
问题 I need a function that will be filter parameters and build query. I have 4 parameters therefore if I would try to implement query for each condition I would have to write 16 (2^4) implementations - it's not good idea. I try to improve my code with interface Specification from Spring Data JPA but I cannot create conjunction of predicates. Implementation of Specification interface : public class UserSpecification implements Specification<User> { private final UserSearchCriteria criteria; public

How to write query(include subquery and exists) using JPA Criteria Builder

由 非 Y 不嫁゛ 提交于 2020-05-25 07:42:46
问题 Struggling to write the following query using JPA. Oracle Query: Select * from table1 s where exists (Select 1 from table2 p INNER JOIN table3 a ON a.table2_id = p.id WHERE a.id = s.table3_id AND p.name = 'Test'); Also, would you like to point any good tutorial to write complex queries in JPA. 回答1: I will answer the example of the simple car advertisement domain (advert, brand, model) using JpaRepository, JpaSpecificationExecutor, CriteriaQuery, CriteriaBuilder : brand [one-to-many] model

How to write query(include subquery and exists) using JPA Criteria Builder

由 爷，独闯天下 提交于 2020-05-25 07:42:06
问题 Struggling to write the following query using JPA. Oracle Query: Select * from table1 s where exists (Select 1 from table2 p INNER JOIN table3 a ON a.table2_id = p.id WHERE a.id = s.table3_id AND p.name = 'Test'); Also, would you like to point any good tutorial to write complex queries in JPA. 回答1: I will answer the example of the simple car advertisement domain (advert, brand, model) using JpaRepository, JpaSpecificationExecutor, CriteriaQuery, CriteriaBuilder : brand [one-to-many] model

SpringBoot集成MongoDB

由 不问归期 提交于 2020-04-07 14:54:55
前言 之前写了各种nosql数据库的比较，以及相关理论，现在我在本地以springboot+MongoDB框架，探究了具体的运行流程，下面总结一下，分享给大家。 运行前准备 安装并启动MongoDB应用程序 参考网址： windows http://www.runoob.com/mongodb/mongodb-window-install.html linux http://www.runoob.com/mongodb/mongodb-linux-install.html 在MongoDB应用工具中查询数据增删改效果（rebo3t） 下载地址： https://robomongo.org/download lombok安装 参考网址： https://www.cnblogs.com/fqszywz/p/7733703.html 代码运行 代码下载： https://github.com/a123demi/spring-boot-integration 代码主要讲解 主要依赖 <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-mongodb</artifactId> </dependency> 数据库连接 spring.application
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