declare the data type of that variable to the varchar, initialize the variable with a certain value, say “Happy Learning!” and then fetch the variable’s value using the select statement as shown below. Code:
使用SELECT 或SET 命令来设定变量的值 说明形式如下: DECLARE @变量名 变量类型 [ @变量名 变量类型] SELECT @局部变量 = 变量值 SET @局部变量= 变量值 如: declare @name char 30 @wage money select @name = e_name @wage = e_wage from employee where emp_id = '10010001' 2、BEGIN…ENDBEGIN ...
C# 复制 public System.Collections.Generic.IList<Microsoft.SqlServer.TransactSql.ScriptDom.DeclareVariableElement> Declarations { get; } Property Value IList<DeclareVariableElement> Applies to 产品版本 Microsoft.SQLServer.DacFx 140.3881.1, 150.18208.0,...
A simple form of the SELECT INTO statement is: SELECT select_item [, select_item ]... INTO variable_name [, variable_name ]... FROM table_name; For each select_item, there must be a corresponding, type-compatible variable_name. ...
(25) OUTPUT';SET@IntVariable =22276;EXECUTEsp_executesql @SQLString, @ParmDefinition, @CustomerID = @IntVariable, @SalesOrderOUT = @SalesOrderNumberOUTPUT;-- This SELECT statement returns the value of the OUTPUT parameter.SELECT@SalesOrderNumber;-- This SELECT statement uses the value of th...
-- Create a variable with a default>DECLAREVARIABLEmyvarINTDEFAULT5; >VALUES(myvar); 5-- Setting a variable>SETVARmyvar = (SELECTsum(c1)FROMVALUES(1), (2)AST(c1); >VALUES(myvar); 3-- Variables are the outermost scope.>SELECTmyvar, t.myvar, session.myvarFROMVALUES(1)AST(myvar); 1 ...
Variables are declared in the body of a batch or procedure with the DECLARE statement and are assigned values by using either a SET or SELECT statement. Cursor variables can be declared with this statement and used with other cursor-related statements. After declaration, all variables are initiali...
使用DMSQL 程序的主要目的是对 DM 数据库进行访问,因此 DMSQL 程序中支持使用 SQL 语句进行对数据库对象的 SELECT、INSERT、UPDATE、DELETE 等 DML 操作,还可以定义和操纵游标等。DMSQL 程序支持的 SQL 语句具体包括:数据查询语句(SELECT) 数据操纵语句(INSERT、DELETE、UPDATE) 游标定义及操纵语句(DECLARE、OPEN、...
(25) OUTPUT';SET@IntVariable =22276;EXECUTEsp_executesql @SQLString, @ParmDefinition, @CustomerID = @IntVariable, @SalesOrderOUT = @SalesOrderNumberOUTPUT;-- This SELECT statement returns the value of the OUTPUT parameter.SELECT@SalesOrderNumber;-- This SELECT statement uses the value of the ...
Lets you use the result of a SELECT statement as the return value from sqlcmd. If numeric, the first column of the last result row is converted to a 4-byte integer (long). MS-DOS, Linux, and macOS pass the low byte to the parent process or operating system error level. Windows ...