SQL 游标的存储过程示例

注意事项：两个小数运算的时候都是一种类型！

USE [FoodMedicineExam]
GO
/****** Object:  StoredProcedure [dbo].[P_DrugExamAnalysis]    Script Date: 02/02/2016 10:53:02 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:        PPL
-- Create date: 2016-01-05
-- Description:    考试分析
-- =============================================
ALTER PROCEDURE [dbo].[P_DrugExamAnalysis]
    @ProvinceCode VARCHAR(10) ,        --省份
    @CityCode VARCHAR(10) ,            --城市
    @Area VARCHAR(10) ,                --县级
    @DepartCode VARCHAR(10) ,        --机构
    @TrainPlan VARCHAR(10)            --培训计划
AS
    BEGIN
        --检查临时表是否存在，否则删除临时表
        IF EXISTS ( SELECT  *
                    FROM    sys.objects
                    WHERE   object_id = OBJECT_ID(N'[dbo].[#tempCounttable]')
                            AND type IN ( N'U' ) )
            BEGIN
                DROP TABLE [dbo].[#tempCounttable]
            END
    --创建临时表
        CREATE TABLE #tempCounttable
            (
              id INT IDENTITY(1, 1)
                     NOT NULL ,--创建列id,并且每次新增一条记录就会加
              passType VARCHAR(10) ,
              lv FLOAT
            )
            --总人数
        CREATE TABLE #tmpPeoCount ( peoCount INT )
            --通过率
        CREATE TABLE #tmpTongguo ( Tongguo FLOAT )
             --未通过率
        CREATE TABLE #tmpWeitonguo ( Weitonguo FLOAT )
              --缺考率
        CREATE TABLE #tmpQuekao ( Quekao FLOAT )

    --定义临时变量

        DECLARE @where VARCHAR(1000) --条件SQL

        DECLARE @zongCountsql VARCHAR(1000) --总人数
        DECLARE @tongGuoCountsql VARCHAR(1000) --通过率
        DECLARE @weiTongGuoCountsql VARCHAR(1000) --未通过率
        DECLARE @queKaosql VARCHAR(1000) --缺考

        DECLARE @zongCount INT --总人数
        DECLARE @tongGuoCount FLOAT --通过率
        DECLARE @weiTongGuoCount FLOAT --未通过率
        DECLARE @queKao FLOAT --缺考

        SET @where = ' ' ;
    --市局
        IF ( @ProvinceCode != '' )
            BEGIN
                SET @where += ' AND  c_project.Province=''' + @ProvinceCode
                    + '''' ;
            END

     --市局单位
        IF ( @CityCode != '' )
            BEGIN
                SET @where += ' AND c_project.City=''' + @CityCode + '''' ;
            END
     --分局
        IF ( @Area != '' )
            BEGIN
                SET @where += ' AND c_project.Area=''' + @Area + '''' ;
            END
     --单位
        IF ( @DepartCode != '' )
            BEGIN
                SET @where += ' AND  c_project.DepartCode=''' + @DepartCode
                    + '''' ;
            END
      --培训
        IF ( @TrainPlan != '' )
            BEGIN
                SET @where += ' AND  C_TrainPlan.id=''' + @TrainPlan + '''' ;
            END
        PRINT ( @where )
     --总人数
        SET @zongCountsql = 'SELECT   COUNT(*)
                           FROM     dbo.c_project
                                    INNER JOIN dbo.C_TrainPlan ON c_project.TrainPlanId = C_TrainPlan.Id
                           WHERE    1 = 1' + @where ;
        INSERT  INTO #tmpPeoCount
                ( peoCount
                )
                EXEC ( @zongCountsql
                    )
        SELECT  @zongCount = peoCount
        FROM    #tmpPeoCount
        PRINT ( @zongCount )
    --通过率
        SET @tongGuoCountsql = 'SELECT  COUNT(*)
                                        FROM    dbo.c_project
                                                JOIN C_TrainPlan ON c_project.TrainPlanId = C_TrainPlan.Id
                                                JOIN C_ExamPlan ON C_ExamPlan.TrainPlanId = C_TrainPlan.Id
                                                JOIN c_examanswer ON dbo.c_project.id = dbo.c_examanswer.projectid
                                                JOIN dbo.E_ExamWay ON E_ExamWay.Id = C_ExamPlan.ExamWayId
                                        WHERE   c_examanswer.point >= E_ExamWay.PassScore'
            + @where ;
        INSERT  INTO #tmpTongguo
                ( Tongguo
                )
                EXEC ( @tongGuoCountsql
                    )
        SELECT  @tongGuoCount = Tongguo
        FROM    #tmpTongguo
    --缺考
        SET @queKaosql = 'SELECT    COUNT(*)
                                  FROM      dbo.c_project
                                            INNER JOIN dbo.C_TrainPlan ON c_project.TrainPlanId = C_TrainPlan.Id
                                  WHERE  1=1  ' + @where
            + ' AND c_project.id NOT IN ( SELECT
                                                              projectid
                                                              FROM
                                                              c_examanswer)'
        INSERT  INTO #tmpQuekao
                ( Quekao
                )
                EXEC ( @queKaosql
                    )
        SELECT  @queKao = Quekao
        FROM    #tmpQuekao

      --未通过率
        SET @weiTongGuoCountsql = 'SELECT   COUNT(DISTINCT c_project.id)
                                        FROM    dbo.c_project
                                               left JOIN C_TrainPlan ON c_project.TrainPlanId = C_TrainPlan.Id
                                               left JOIN C_ExamPlan ON C_ExamPlan.TrainPlanId = C_TrainPlan.Id
                                               left JOIN c_examanswer ON dbo.c_project.id = dbo.c_examanswer.projectid
                                                JOIN dbo.E_ExamWay ON E_ExamWay.Id = C_ExamPlan.ExamWayId
                                        WHERE   c_examanswer.point < E_ExamWay.PassScore'
            + @where ;

        INSERT  INTO #tmpWeitonguo
                ( Weitonguo
                )
                EXEC ( @weiTongGuoCountsql
                    )
        SELECT  @weiTongGuoCount = Weitonguo
        FROM    #tmpWeitonguo

        DECLARE @tonguolv FLOAT
        IF ( @tongGuoCount > 0
             AND @zongCount > 0
           )
            BEGIN
                SET @tonguolv = ( @tongGuoCount / @zongCount ) * 100
            END
        ELSE
            BEGIN
                SET @tonguolv = 0
            END
        DECLARE @weitongguolv FLOAT
        IF ( @weiTongGuoCount > 0
             AND @zongCount > 0
           )
            BEGIN
                SET @weitongguolv = ( @weiTongGuoCount / @zongCount ) * 100
            END
        ELSE
            BEGIN
                SET @weitongguolv = 0
            END
        DECLARE @quekaolv FLOAT
        IF ( @queKao > 0
             AND @zongCount > 0
           )
            BEGIN
                SET @quekaolv = ( @queKao / @zongCount ) * 100
            END
        ELSE
            BEGIN
                SET @quekaolv = 0
            END
        INSERT  INTO #tempCounttable
                ( passType, lv )
        VALUES  ( '通过率', -- passType - varchar(10)
                  @tonguolv  -- lv - float
                  )
        INSERT  INTO #tempCounttable
                ( passType, lv )
        VALUES  ( '未通过率', -- passType - varchar(10)
                  @weitongguolv  -- lv - float
                  )
        INSERT  INTO #tempCounttable
                ( passType, lv )
        VALUES  ( '缺考率', -- passType - varchar(10)
                  @quekaolv  -- lv - float
                  )

        DECLARE @sql VARCHAR(100) ;
        SET @sql = 'select * from #tempCounttable' ;
        EXEC(@sql)

    --检查临时表是否存在，否则删除临时表

        IF EXISTS ( SELECT  *
                    FROM    sys.objects
                    WHERE   object_id = OBJECT_ID(N'[dbo].[#tempCounttable]')
                            AND type IN ( N'U' ) )
            BEGIN
                DROP TABLE [dbo].[#tempCounttable]
                DROP TABLE [dbo].[#tmpPeoCount]
                DROP TABLE [dbo].[#tmpTongguo]
                DROP TABLE [dbo].[#tmpWeitonguo]
                DROP TABLE [dbo].[#tmpQuekao]
            END
    END
GO