5: create table #table (empidint, empname varchar (25),Department varchar (25) ,Salaryint) 6: create clustered index #table_index1 on #table (empid asc ) 7: create nonclustered index #table_index2 on #table (Sa
Unlike the majority of the other data types in SQL Server, you cannot use a table variable as an input or an output parameter. In fact, a table variable is scoped to the stored procedure, batch, or user-defined function just like any local variable you create with a DECLARE statement. T...
SQL复制 -- Create the table.CREATETABLETestTable (colaINT, colbCHAR(3)); GOSETNOCOUNTON; GO-- Declare the variable to be used.DECLARE@MyCounterINT;-- Initialize the variable.SET@MyCounter =0;-- Test the variable to see if the loop is finished.WHILE (@MyCounter < 26)BEGIN;-- Insert...
Azure SQL 托管实例 以NODE或EDGE表的形式创建新 SQL 图形表。 备注 有关标准 Transact-SQL 语句,请参阅CREATE TABLE (Transact-SQL)。 Transact-SQL 语法约定 语法 syntaxsql CREATETABLE{database_name.schema_name.table_name|schema_name.table_name|table_name} ( {<column_definition>} |<computed_column...
Creates a TSqlParser for the specified version. C# Kopie public Microsoft.SqlServer.TransactSql.ScriptDom.TSqlParser Create (Microsoft.SqlServer.TransactSql.ScriptDom.SqlVersion tsqlParserVersion, bool initialQuotedIdentifiers); Parameters tsqlParserVersion SqlVersion The parser version to use. ...
T-SQL是一种用于管理和查询关系型数据库的编程语言。它是Microsoft SQL Server数据库系统的扩展。在T-SQL中,没有直接支持的FOR循环语句,但可以使用CURSOR游标来模拟循环。...
Privilege80.Accept(TSqlFragmentVisitor) Method Reference Feedback Definition Namespace: Microsoft.SqlServer.TransactSql.ScriptDom Assembly: Microsoft.SqlServer.TransactSql.ScriptDom.dll Package: Microsoft.SqlServer.TransactSql.ScriptDom v161.8901.0 Accepts visitor C# 复制 public override void Accept...
SAVETRAN[SCATION][<save point name> | <@savepoint variable>] 1. 示例,先来建一张表如下: 事务的具体代码: BEGINTRANTran_Money--开始事务DECLARE@tran_errorint;SET@tran_error=0;BEGINTRYUPDATEtb_MoneySETMyMoney=MyMoney-30WHEREName='刘备';SET@tran_error=@tran_error+@@ERROR;--测试出错代码,看看...
Accepts visitor C# 复制 public override void Accept(Microsoft.SqlServer.TransactSql.ScriptDom.TSqlFragmentVisitor visitor); Parameters visitor TSqlFragmentVisitor Applies to 产品版本 Microsoft.SQLServer.DacFx 140.3881.1, 150.18208.0, 160.2004021.0, 161.6374.0, 161 本文...
在上一章介绍了SQL语言的基础知识,传统的SQL语言属于非程序性语言,每一条SQL指令都单独、个别的执行,指令与指令间无法沟通,使用上不如传统的高级程序语言来的方便。因此,MS SQL Server提供了Transact-SQL(T-SQL)语言,除了符合SQL的原有语法规则外,另外增加了变量、程序区块、流程控制等第三代语言的功能,使其应用...