有时候一张表的一个字段是以逗号分割的一个字符串,分割的数字是明细表的主键id. 关联明细表查询可以这样做: ) ) --这是把areanos字段赋值给@areanos变量 set @areanos='1,2,3' --将拼接的SQL脚本赋值给变量 set @str='select * from area where areano in ('+@areanos+') order by areano' --调用系统存储过程,执行SQL exec sp_executesql @str
resultset 对象获取行字段数据时报:java.sql.SQLException: Column 'id' not found. 代码: String sql="SELECT d.content,c.name AS categoryName FROM news_detail d,news_category c WHERE d.categoryId=c.id"; Object[] params ={}; System.out.println(this.executeQuery(sq
在注册新用户的时候报错: (sqlite3.OperationalError) no such table: users [SQL: 'SELECT users.id AS users_id, users.email AS users_email, users.username AS users_username, users.role_id AS users_role_id, users.password_hash AS users_password_hash, users.confirmed
1.错误描述 org.hibernate.exception.GenericJDBCException: error executing work at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:54) at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(Sql
1:id 列要设置成自增,自动赋值 java.sql.SQLException: Field 'id' doesn't have a default value at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3593) at com.mysql.jdbc.MysqlIO.checkErrorPacke
the article from :http://m.blog.itpub.net/31393455/viewspace-2130875/ Script to Collect Log File Sync Diagnostic Information (lfsdiag.sql) (文档 ID 1064487.1)In this Document Purpose Requirements Configuring Instructions Script Sample Output References
转自:http://blog.csdn.net/huanghanqian/article/details/52847835 四种join的区别已老生常谈: INNER JOIN(也可简写为JOIN): 如果表中有至少一个匹配,则返回行 LEFT JOIN: 即使右表中没有匹配,也从左表返回所有的行 RIGHT JOIN: 即使左表中没有匹配,也从右表返回所有的行 FULL JOIN: 只要其中一个表中存在匹配,就返回行 那么问题来了,还有一种常见的写法是将表用逗号隔开,那这个又是怎么连接的呢.
问题一: 报错如下: org.hibernate.id.IdentifierGenerationException: ids for this class must be manually assigned before calling save(): com.tt.hibernate.n2n.Item at org.hibernate.id.Assigned.generate(Assigned.java:52) at org.hibernate.event.internal.AbstractS
在做mybatis插入的时候报了这个错误,百度了下,貌似是因为这个健没有设置值且不是自增类型的. java.sql.SQLException: Field 'id' doesn't have a default value at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965) ~[mysql-connector-java-5.1.46.jar:5.1.46] at com.mysql.jdbc.MysqlIO.check
转自:https://blog.csdn.net/xinghuo0007/article/details/51810867 自增长:java.sql.SQLException: Field 'id' doesn't have a default value 今天用java程序向mysql数据库中进行数据记录的时候,用的id自增长时,报了异常java.sql.SQLException: Field 'id' doesn't have a default value错误,看了一篇博文,决定按他的方法
18c & 19c Physical Standby Switchover Best Practices using SQL*Plus (Doc ID 2485237.1) APPLIES TO: Oracle Database - Enterprise Edition - Version 18.3.0.0.0 and laterInformation in this document applies to any platform. GOAL This Document explain abo
11.2 Data Guard Physical Standby Switchover Best Practices using SQL*Plus (Doc ID 1304939.1) APPLIES TO: Oracle Database - Enterprise Edition - Version 11.2.0.1 and laterOracle Database Cloud Schema Service - Version N/A and laterOracle Database Exad
先看具体日志: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name of URL [jar:-SNAPSHOT.jar!/BOOT-INF/c
用hibernate进行映射查询时,出现Caused by: java.sql.SQLException: Column 'id' not found 异常,检查数据库表及映射都有id且已经正确映射,google后发现原因为: Your query doesn't return a field named id即查询sql中没有查询出主键id列,但返回结果集中用到,故出现异常特此记录. 详细解答见下: http://stackoverflow.com/questions/34164411/cau
最近优化FORM中的查询条件遇到某个字段可以选取多个值的问题,思路当然就是选取时将多个值通过某个符号拼接起来,查询数据的时候将拼接后的字符串按照符号分割开,在分割逗号的时候用到了一个新的方法REGEXP_SUBSTR,记录一下.该方法分割所有的逗号,返回多行. SELECT regexp_substr(p_item_code, '[^,]+', 1, LEVEL) AS pscode FROM dual CONNECT BY LEVEL <= length(p_item_code)
--创建存储过程 IF EXISTS (SELECT * FROM sysobjects WHERE name='GetSplitString' AND xtype='p') DROP PROCEDURE dbo.GetSplitString GO CREATE PROCEDURE dbo.GetSplitString @strID nvarchar(max) --以逗号隔开的字符串 ,) output --临时表 AS BEGIN declare @totalLength int declar
