5.postgresql 插入16进制数 INSERT INTO tableAAA VALUES( x'0001f' : : integer, '鉴权' , 'Authority' ) 6.使用 TG_RELNAME 报错ERROR: syntax error at or near "$1" at character [引]http://www.dbmonster.com/Uwe/Forum.aspx/postgresql/2051/TG-RELNAME-problem Perhaps you will get some idea...
自动提交技巧 需要特别注意的是,在psql中事务是自动提交的,比如,执行完一条DELETE或UPDATE语句后,事务就会自动提交,如果不想让事务自动提交,方法有两种。 方法一:运行“begin;”命令,然后执行DML语句,最后再执行commit或rollback语句,示例如下。 postgres@linuxpg51:5432=#select * from haha; empno | ename | job...
}/**@param{string}id@param{object}data*/asyncfunctionupdateUserInfo(id, data){letcount =awaitpqorm.model('user').where({id: id}).update(data)if(count >0)returntruereturnfalse} 插入数据 letpqorm = initORM(dbconfig); ;(async() =>{lettm =Date.now();awaitpqorm.model('log').insert...
after insertordeleteorupdateonstudentforstatement executeprocedurelog_trigger();//statement之后一个SQL语句无论是插入多条数据,删除多条数据或者更新删除不存在的数据;只要执行成功一个SQL语句,就会触发一次; 行级触发器: 以SQL语句操作后作用到的n行而触发n次; create trigger log_trigger2 after insertordeleteo...
mysql> GRANT SELECT,INSERT,DELETE,UPDATE ON demo.invcount TO 'stocker'; Query OK, 0 rows affected (0.02 sec) mysql> GRANT SELECT ON demo.goodsmaster TO 'stocker'; Query OK, 0 rows affected (0.02 sec) 1. 2. 3. 4. 5. 查看角色权限 ...
在使用psql执行insert语句时,可能会遇到一些令人费解的错误。以下是一些常见的错误和解决方法: 错误:ERROR: syntax error at or near "INSERT" 解决方法:检查insert语句的语法是否正确,确保INSERT关键字和表名之间没有语法错误。 错误:ERROR: relation "table_name" does not exist 解决方法:检查表名是否正确,确保...
ALTER DEFAULT PRIVILEGES [ FOR { ROLE | USER } target_role [, ...] ] [ IN SCHEMA schema_name [, ...] ] abbreviated_grant_or_revoke where abbreviated_grant_or_revoke is one of: GRANT { { SELECT | INSERT | UPDATE | DELETE | TRUNCATE | REFERENCES | TRIGGER } [, ...] | ALL ...
\o [FILE] send all query results to file or |pipe \qecho [STRING] write string to query output stream (see \o)Informational (options: S = show system objects, + = additional detail)\d[S+] list tables, views, and sequences ...
insert into 表名 ([字段名m],[字段名n],...) values ([列m的值],[列n的值],...); 修改表中的某行某列的数据: update [表名] set [目标字段名]=[目标值] where [该行特征]; 删除表中某行数据: delete from [表名] where [该行特征]; --删空整个...
ALTER FUNCTION CREATE CONVERSION DROP COLLATION INSERT ALTER GROUP CREATE DATABASE DROP CONVERSION LISTEN ALTER INDEX CREATE DOMAIN DROP DATABASE LOAD ALTER LANGUAGE CREATE EVENT TRIGGER DROP DOMAIN LOCK ALTER LARGE OBJECT CREATE EXTENSION DROP EVENT TRIGGER MOVE ...