I Have 3 Input Parameters,Based On Values Of Each Input Parameter I Have To Prepare The Sql In Procedure Dynamically. I Am Doing Below Way But It Is Failing, If The Parameter Value Is Null,Then I...

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SQL-Server-2008

SQL

DECLARE @empid int

DECLARE @name varchar(100)='sri'
DECLARE @panno varchar(100)='12ertyumf'


                DECLARE  @location VARCHAR(100)='UK'

                 DECLARE  @SQLQuery VARCHAR(100)='SELECT  EMPId  FROM Employees WHERE'

               if(@name is null and @panno is null and @location is null)
              BEGIN
              SELECT -1
               return
              END
               if(@name is not null)

               BEGIN

                SET  @SQLQuery=@SQLQuery+' Name='''+@name+''''
                END

                if(@PanNo is not null)
                BEGIN
                 SET  @SQLQuery=@SQLQuery+' or PanNo='''+@panno+''''
                 END

                 if(@location is not null)
                 BEGIN

                  SET  @SQLQuery=@SQLQuery+' or location='''+@location+''''

                END
                EXECUTE(@SQLQuery)

Posted 9-Feb-14 22:52pm

srikanth492

Updated 12-Feb-14 18:08pm

v2

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2 solutions

Solution 2

SQL

DECLARE @empid int

DECLARE @name varchar(100)= NULL
DECLARE @panno varchar(100)=NULL


                DECLARE  @location VARCHAR(100)='UK'

                 DECLARE  @SQLQuery nVARCHAR(500)=' SELECT  @empid = EMPId  FROM Employees '
                 DEClARE @WhereClause  VARCHAR(500) = ''

               if(@name is null and @panno is null and @location is null)
              BEGIN
              SELECT -1
               return
              END
               if(@name is not null)

               BEGIN

                SET  @WhereClause=@WhereClause+' Name='''+@name+''''
                END

                if(@PanNo is not null)
                BEGIN
                    IF @WhereClause IS NULL OR @WhereClause = ''
                    BEGIN
                        SET  @WhereClause=' PanNo='''+@panno+''''
                    END
                    ELSE
                    BEGIN
                        SET  @WhereClause=@WhereClause+' or PanNo='''+@panno+''''
                    END
                 END

                 if(@location is not null)
                 BEGIN

                    IF @WhereClause IS NULL OR @WhereClause = ''
                    BEGIN
                        SET  @WhereClause='  location='''+@location+''''
                    END
                    ELSE
                    BEGIN
                        SET  @WhereClause=@WhereClause+' or location='''+@location+''''
                    END

                END

                IF @WhereClause IS NOT NULL AND @WhereClause <> ''
                BEGIN
                    SET @SQLQuery = @SQLQuery + ' WHERE ' + @WhereClause
                END


               --EXECUTE(@SQLQuery)
               EXECUTE sp_executesql @SQLQuery ,N'@empid int OUTPUT',@empid      OUTPUT;

               select  @empid

Posted 12-Feb-14 20:48pm

prakashdotnet

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prakashdotnet · Accepted Answer · 2014-02-12T18:44:00

SQL

DECLARE @empid int

DECLARE @name varchar(100)= NULL
DECLARE @panno varchar(100)=NULL


                DECLARE  @location VARCHAR(100)='UK'

                 DECLARE  @SQLQuery VARCHAR(500)='SELECT  EMPId  FROM Employees '
                 DEClARE @WhereClause  VARCHAR(500) = ''

               if(@name is null and @panno is null and @location is null)
              BEGIN
              SELECT -1
               return
              END
               if(@name is not null)

               BEGIN

                SET  @WhereClause=@WhereClause+' Name='''+@name+''''
                END

                if(@PanNo is not null)
                BEGIN
                    IF @WhereClause IS NULL OR @WhereClause = ''
                    BEGIN
                        SET  @WhereClause=' PanNo='''+@panno+''''
                    END
                    ELSE
                    BEGIN
                        SET  @WhereClause=@WhereClause+' or PanNo='''+@panno+''''
                    END
                 END

                 if(@location is not null)
                 BEGIN

                    IF @WhereClause IS NULL OR @WhereClause = ''
                    BEGIN
                        SET  @WhereClause='  location='''+@location+''''
                    END
                    ELSE
                    BEGIN
                        SET  @WhereClause=@WhereClause+' or location='''+@location+''''
                    END

                END

                IF @WhereClause IS NOT NULL AND @WhereClause <> ''
                BEGIN
                    SET @SQLQuery = @SQLQuery + ' WHERE ' + @WhereClause
                END


                EXECUTE(@SQLQuery)