¶¯Ì¬SQL
Sample1:
/* Variable Declaration */
DECLARE @EmpID AS SMALLINT
DECLARE @SQLQuery AS NVARCHAR(500)
/* Build and Execute a Transact-SQL String with a single parameter value Using EXECUTE Command */
SET @EmpID = 1001
SET @SQLQuery = 'SELECT * from tblEmployees WHERE EmployeeID = ' + CAST(@EmpID AS NVARCHAR(10))
Print @SQLQuery
EXECUTE(@SQLQuery)
Sample2:
* Using sp_executesql - Example 1.1 */
/* Variable Declaration */
DECLARE @EmpID AS SMALLINT
DECLARE @SQLQuery AS NVARCHAR(500)
DECLARE @ParameterDefinition AS NVARCHAR(100)
/* Build and Execute a Transact-SQL String with a single parameter value Using sp_executesql Command */
SET @EmpID = 1001
SET @SQLQuery = 'SELECT * from tblEmployees WHERE EmployeeID = @EmpID'
/* Specify Parameter Format */
SET @ParameterDefinition = '@EmpID SMALLINT'
EXECUTE sp_executesql @SQLQuery, @ParameterDefinition, @EmpID
Sample3:
ALTER Procedure sp_EmployeeSelect
@EmployeeName NVarchar(100),
@Department NVarchar(50),
@Designation NVarchar(50),
@StartDate DateTime,
@EndDate DateTime,
@Salary Decimal(10,2),
@Total INT OUTPUT
AS
Set NoCount ON
Declare @SQLQuery AS NVarchar(4000)
Declare @ParamDefinition AS NVarchar(2000)
Set @SQLQuery = 'Select * from tblEmployees where (1=1) '
If @EmployeeName Is Not Null
Set @SQLQuery = @SQLQuery + ' And (EmployeeName = @EmployeeName)'
If @Department Is Not Null
Set @SQLQuery = @SQLQuery + ' And (Department = @Department)'
If @Designation Is Not Null
Set @SQLQuery = @SQLQuery + ' And (Designation = @Designation)'
If (@StartDate Is Not Null) AND (@EndDate Is Not Null)
Set @SQLQuery = @SQLQuery + ' And (JoiningDate BETWEEN @StartDa
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