EXEC (@string_variable); 在下面的示例中,我们声明了一个 VARCHAR 类型的名为 @sqlstring 的变量,然后为其分配一个字符串。 SQL DECLARE@sqlstringASVARCHAR(1000);SET@sqlstring='SELECT customerid, companyname, firstname, lastname FROM SalesLT.Customer;'EXEC(@sqlstring);...
DeclareVariableStatement Class Reference Feedback Definition Namespace: Microsoft.SqlServer.TransactSql.ScriptDom Assembly: Microsoft.SqlServer.TransactSql.ScriptDom.dll Package: Microsoft.SqlServer.TransactSql.ScriptDom v161.8901.0 This statement represents declare @variable statement except table ...
DECLARE array_variable INT; -- 定义一个字符串变量来存储数组的值 DECLARE array_string VARCHAR(255); -- 将数组的值存储在字符串变量中 SET array_string = '1,2,3,4,5'; -- 将字符串变量的值赋给数组变量 SET array_variable = CONCAT_WS(',', array_string); -- 对数组进行操作 -- 例如,输...
...变量的申明 declare @local_variable data_type eg...(申明和赋值) declare @index int =3 赋值的另外一种写法 set @index =@index +1 (自加操作) 二。...向数据库中批量插入数据** declare @index int=175 //变量申明 while @index <235 //循环条件 begin insert...//插入数据 values(@index...
Consider one example where we will declare one variable named @wishes that won’t have any initial value and will have a varchar data type. We will assign the value string ‘Hey! Good Morning My Friend! Learn SQL on EDUCBA with payal.’ to the @wishes variable using the SET statement in...
The DECLARE VARIABLE statement defines a CCSID for a host variable and the subtype of the variable. When it appears in an application program, the DECLARE VARIABLE statement causes the Db2 precompiler to tag a host variable with a specific CCSID. When th
User_Variable := "@"+Unquoted_Identifier. Variables allow you to name scalar and rowset expressions. A simple example should illustrate how this works:U-SQL 复制 DECLARE @city string = "Seattle"; You can do more than store simple values. You can use C# Expressions to compute valuesU-SQL...
More actions Since you're already using dynamic SQL, you can directly pass the value to the SQL command: ALTER PROCEDURE spGetList @ID INT AS --DECLARE @ID INT DECLARE @Query VARCHAR(500) IF object_ID('tempdb..#TempTable') IS NOT NULL ...
当SQL Server 安全对象的名称被传递给使用 QUOTENAME(@variable, ']') 形式的语句时,可能发生截断。下面的示例显示了这种情况。 CREATE PROCEDURE sp_MyProc @schemanamesysname, @tablenamesysname, AS -- Declare a variable as sysname. The variable will be 128 characters. ...
以下示例使用OUTPUT参数将由SELECT语句生成的结果集存储于@SQLString参数中。然后将执行两个使用OUTPUT参数值的SELECT语句。 USE AdventureWorks2008R2; GO DECLARE @SQLString nvarchar(500); DECLARE @ParmDefinition nvarchar(500); DECLARE @SalesOrderNumber nvarchar(25); DECLARE @IntVariable int; SET @SQLString ...