一篇拼SQL字符串的语句

set  ANSI_NULLS  ON
set  QUOTED_IDENTIFIER  ON
go



ALTER      PROCEDURE   [ dbo ] . [ T_Consultation_Select ]  
     @ConsultationStyleID   TINYINT ,
     @AnswerUserID   VARCHAR ( 30 ),
     @IncomeCallBeginTime   [ DATETIME ] ,
     @IncomeCallEndTime   [ DATETIME ]
     AS
     BEGIN
         DECLARE   @whereStr   VARCHAR ( 8000 ),
         @count   INT
         SET   @count = 0
         SET   @whereStr = ''
         IF    @ConsultationStyleID   IS   NOT   NULL
           BEGIN
                IF ( @count > 0 )
                 BEGIN
                  SELECT   @whereStr = @whereStr + '     AND T_Consultation.ConsultationStyleID  = ' + Convert ( Varchar ( 10 ), @ConsultationStyleID )
              END
         ELSE
              BEGIN
                  SELECT   @whereStr = @whereStr + '   T_Consultation.ConsultationStyleID = ' + Convert ( Varchar ( 10 ), @ConsultationStyleID )
                END
           SET    @count = @count   + 1
            END
            IF    @AnswerUserID   IS   NOT   NULL
           BEGIN
                IF ( @count > 0 )
                 BEGIN
                  SELECT   @whereStr = @whereStr + '     AND T_Consultation.AnswerUserID  = ''' + Convert ( Varchar ( 10 ), @AnswerUserID ) ''
              END
         ELSE
              BEGIN
                  SELECT   @whereStr = @whereStr + '   T_Consultation.AnswerUserID = ''' + Convert ( Varchar ( 10 ), @AnswerUserID ) ''
                END
           SET    @count = @count   + 1
            END
             IF   @IncomeCallBeginTime   IS   NOT   NULL
                 BEGIN
                     IF ( @count > 0 )
                         BEGIN
                              SELECT   @whereStr = @whereStr + '  AND  T_Consultation.CreateTime >= '' + CONVERT(VARCHAR(10),@IncomeCallBeginTime) '''
                         END
             ELSE
                     BEGIN
                        SELECT   @whereStr = @whereStr + '   T_Consultation.CreateTime >= ''  + CONVERT(VARCHAR(10),@IncomeCallBeginTime) '''
                     END         
                 END
              IF   @IncomeCallEndTime   IS   NOT   NULL
                 BEGIN
                     IF ( @count > 0 )
                         BEGIN                                                                                                             
                              SELECT   @whereStr = @whereStr + '  AND  T_Consultation.CreateTime <= ''  + CONVERT(VARCHAR(10),@IncomeCallEndTime) '''
                         END
             ELSE
                     BEGIN
                        SELECT   @whereStr = @whereStr + '   T_Consultation.CreateTime <= ''  + CONVERT(VARCHAR(10),@IncomeCallEndTime) '''
                     END         
                 END
            IF ( @count > 0 )
             SELECT   @whereStr = ' SELECT [CreateTime]
  FROM T_Consultation WHERE T_Consultation.FollowUpMark= ' + ' 1 ' + '   And  '   +   @whereStr
    ELSE
    SELECT   @whereStr = ' SELECT ConsultationID,(SELECT ParaName FROM T_SysPara WHERE GroupID=14 AND ParaID=T_Consultation.ConsultationStyleID)AS ConsultationStyleID,
            [ConsultationContent],[ConsultationResults],(SELECT ParaName FROM T_SysPara WHERE GroupID=16 AND ParaID=T_Consultation.HaveOrderingIntention)AS HaveOrderingIntention,[OrderingIntentionContent],
  [CustomerID],[AnswerUserID],[CreateTime]
  FROM T_Consultation where  T_Consultation.FollowUpMark= ' + ' 1 '  
END
select   ( @whereStr )