1.sql语句中 insert into tableName() output inserted.id values() 2 .存储过程中 ALTER PROCEDURE dbo.getBuyMedicID ( @id int output, @AllsumMoney money ) AS begin INSERT INTO t_buyMedic(sumMoney,buyDate) VALUES(@AllsumMoney,getdate()) …
sql如下 select t.id, t.value, tt.sort as sortno from ENGINEERING_TYPE t left join ENGINEERING_TYPE tt on t.parentid = tt.id order by sortno, t.sort sql很简单,相当于自连接 ,返回行数12行,非常小,但是运行5s左右才出结果 看一下执行计划 可以看到,表与表之间走了hash join,我们的一般规律在返回行数较大时,超过万行时,通常使用hash joi…
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…
对于rownum来说它是oracle系统顺序分配为从查询返回的行的编号,返回的第一行分配的是1,第二行是2,依此类推,这个伪字段可以用于限制查询返回的总行数,而且rownum不能以任何表的名称作为前缀. 举例说明:例如表:student(学生)表,表结构为:ID char(6) --学号name VARCHAR2(10) --姓名 create table student (ID char(6), name VARCHAR2(100));insert into sale values('…
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…
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…
sql多行合并成一行 sql server SELECT [activityId], --STUFF( (SELECT ',' + Cast(A.phone AS varchar) FROM aaa A WHERE A.activityId=B.activityId FOR XML PATH('')) --,1,1,'') AS phonesFROM aaa BGROUP BY [activityId] mysql SELECTactivityId, group_concat(DISTINCT…
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…
这个问题是一年前我刚步入IT行业的一个面试题,当时抓破头皮都想不到的问题,但现在回想过去自身不禁感到可笑,不多扯直接写解决方案.如何在数据表当中找出被删掉的数据行ID,意思是:在一堆的数据当中,让你找出数据存在间隔的那些数据行的ID(先不考虑两个数据行中存在多个间隔的情况). 可见ID=14那条数据行正是我要们寻找的,对于这种情况,可用自查询方式处理: select ID,New_ID,(New_ID - ID -1) as '存在的间隔数量',ID+1 as '被删除的行ID' from (…
mysql 无法退出sql命令行编辑 | ANBOBhttp://www.anbob.com/archives/579.html mysql 无法退出sql命令行编辑 - 码农甲乙丙 - CSDN博客https://blog.csdn.net/u012852597/article/details/78531071…
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…
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…
定时器会返回一个数字值id,可以由clearInterval(id)或clearTimeout(id)来实现对对应定时器的清除. setInterval()/setTimeout()BOM中的Window对象方法,以返回数字值id来清除定时器的排序位置存在一定的兼容性问题.通常采用一个变量接受定时器产生的返回值id,通过变量来这种方式来实现关闭定时器操作的兼容性. chorme浏览器测试: var i = 0; var timer = setInterval(function () { cons…
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…
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…
echo "This is line $LINENO"返回行号 LINENO 变量LINENO返回它在脚本里面的行号. #!/bin/bash echo "This is line $LINENO" 执行上面的脚本test.sh,$LINENO会返回3. $ ./test.sh This is line 3 BASH_SOURCE 变量BASH_SOURCE返回一个数组,内容是当前的脚本调用堆栈.该数组的0号成员是当前执行的脚本,1号成员是调用当前脚本的脚本,以此类…