游标的使用

  1 USE [Dashboard_REL]
  2 GO
  3 /****** Object:  StoredProcedure [dbo].[PUB_IMPORT_FEATURE_LINK_TSHARP_PROC]    Script Date: 09/09/2014 10:17:30 ******/
  4 SET ANSI_NULLS ON
  5 GO
  6 SET QUOTED_IDENTIFIER ON
  7 GO
  8 
  9 ALTER PROCEDURE [dbo].[PUB_IMPORT_FEATURE_LINK_TSHARP_PROC]
 10     -- Add the parameters for the stored procedure here
 11     @pbi VARCHAR(32) ,
 12     @versionId VARCHAR(64)
 13 AS 
 14     BEGIN
 15     -- SET NOCOUNT ON added to prevent extra result sets from
 16     -- interfering with SELECT statements.
 17         SET NOCOUNT ON ;
 18 
 19     -- Insert statements for procedure here
 20         DECLARE @feature_name VARCHAR(128)
 21         DECLARE @dts_feature_name VARCHAR(128)
 22         DECLARE @feature_name_number INT 
 23 
 24         DECLARE feature_cursor CURSOR scroll
 25         FOR SELECT feature_name, dts_feature_name FROM dbo.PUB_FEATURE_LINK_IMPORT WHERE pbi = @pbi AND version_id = @versionId    
 26         
 27         SELECT feature_name, dts_feature_name FROM dbo.PUB_FEATURE_LINK_IMPORT WHERE pbi = @pbi AND version_id = @versionId    
 28 
 29         OPEN feature_cursor
 30 
 31         FETCH FIRST FROM feature_cursor
 32     INTO @feature_name,@dts_feature_name
 33 
 34         WHILE ( @@fetch_status = 0 ) 
 35             BEGIN
 36              --added by yulei on 2014-03-11,first check if this T# feature has duplicated names.
 37                 SELECT  @feature_name_number = COUNT(1)
 38                 FROM    dbo.PUB_FEATURE_MEASUREMENT_INFO
 39                 WHERE   feature_name = @feature_name
 40                         AND pbi = @pbi 
 41                 PRINT ISNULL(@feature_name_number,999999)               
 42                 IF ( @feature_name_number = 1 )--which means it has no duplicated names.
 43                     BEGIN                        
 44                         INSERT  INTO PUB_FEATURE_DTS_LINK_TEMP
 45                                 ( feature_name ,
 46                                   dts_feature_name ,
 47                                   pbi ,
 48                                   version_id
 49                                 )
 50                                 SELECT  a.*
 51                                 FROM    ( SELECT    @feature_name feature_name ,
 52                                                     Value dts_feature_name ,
 53                                                     @pbi pbi ,
 54                                                     @versionId version_id
 55                                           FROM      dbo.SplitStr(@dts_feature_name,
 56                                                               ‘,‘, 1)
 57                                         ) AS a
 58                                         LEFT JOIN PUB_FEATURE_DTS_LINK_TEMP AS b ON a.pbi = b.pbi
 59                                                               AND a.dts_feature_name = b.dts_feature_name
 60                                                               AND a.feature_name = b.feature_name
 61                                                               AND b.version_id=@versionId
 62                                 WHERE   b.id IS  NULL 
 63 
 64                         PRINT ‘inserted rows:‘
 65                             + CAST(@@rowcount AS VARCHAR(50))
 66 
 67              
 68                     END
 69                   ELSE
 70                       BEGIN                        
 71                         INSERT  INTO PUB_FEATURE_DTS_LINK_TEMP
 72                                 ( feature_name ,
 73                                   dts_feature_name ,
 74                                   pbi ,
 75                                   version_id
 76                                 )
 77                                 SELECT  a.*
 78                                 FROM    ( SELECT    @feature_name feature_name ,
 79                                                     Value dts_feature_name ,
 80                                                     @pbi pbi ,
 81                                                     @versionId version_id
 82                                           FROM      dbo.SplitStr(@dts_feature_name,
 83                                                               ‘,‘, 1)
 84                                         ) AS a
 85                                         
 86 
 87                         PRINT ‘inserted rows new:‘
 88                             + CAST(@@rowcount AS VARCHAR(50))
 89 
 90              
 91                     END
 92                     
 93                     
 94                     
 95 
 96             /*
 97              --added by yulei on 2014-03-11,first check if this T# feature has duplicated names.
 98              SELECT @feature_name_number=COUNT(*) FROM dbo.PUB_FEATURE_MEASUREMENT_INFO WHERE feature_name=@feature_name AND pbi=@pbi
 99              IF(@feature_name_number=1)--which means it has no duplicated names.
100              BEGIN
101                     DELETE FROM #T1
102                     INSERT INTO #T1 EXEC PUB_SPLIT_PROC @dts_feature_name,‘,‘
103 
104                     INSERT INTO dbo.PUB_FEATURE_DTS_LINK_TEMP (feature_name,dts_feature_name,pbi,version_id)
105                     SELECT @feature_name,dts_name,@pbi,@versionId FROM #T1
106 
107                     UPDATE dbo.PUB_FEATURE_DTS_LINK_TEMP
108                        SET feature_id = b.feature_id
109                       FROM dbo.PUB_FEATURE_DTS_LINK_TEMP a
110                     LEFT JOIN (SELECT pbi,feature_name,feature_id FROM dbo.PUB_FEATURE_MEASUREMENT_INFO WHERE pbi=@pbi) b
111                     ON a.pbi=b.pbi AND a.feature_name=b.feature_name
112                     WHERE b.feature_id is not null AND a.pbi=@pbi AND a.version_id=@versionId
113 
114                     UPDATE dbo.PUB_FEATURE_DTS_LINK_TEMP
115                        SET dts_feature_id = b.dts_feature_id
116                       FROM dbo.PUB_FEATURE_DTS_LINK_TEMP a
117                     LEFT JOIN (SELECT pbi,dts_feature_name,dts_feature_id FROM dbo.PUB_FEATURE_DTS_INFO WHERE pbi=@pbi AND feature_id=‘00000000‘) b
118                     ON a.pbi=b.pbi AND a.dts_feature_name=b.dts_feature_name
119                     WHERE b.dts_feature_id is not null AND a.pbi=@pbi AND a.version_id=@versionId
120 
121                     UPDATE PUB_FEATURE_DTS_INFO
122                        SET feature_id = b.feature_id
123                       FROM PUB_FEATURE_DTS_INFO a
124                     LEFT JOIN (SELECT pbi,feature_id,dts_feature_id FROM PUB_FEATURE_DTS_LINK_TEMP WHERE pbi=@pbi AND version_id=@versionId) b
125                     ON a.pbi=b.pbi AND a.dts_feature_id=b.dts_feature_id
126                     WHERE a.feature_id=‘00000000‘ AND b.feature_id is not null AND a.pbi=@pbi
127 
128              
129              END
130              --ELSE--which means this feature name has more than one row.
131              --BEGIN
132              
133              --END
134             */
135                 FETCH NEXT FROM feature_cursor
136         INTO @feature_name,@dts_feature_name
137             END
138 
139         CLOSE feature_cursor
140         DEALLOCATE feature_cursor
141               SELECT feature_name, dts_feature_name FROM dbo.PUB_FEATURE_DTS_LINK_TEMP WHERE pbi = @pbi AND version_id = @versionId
142 
143         UPDATE  a
144         SET     feature_id = b.feature_id
145         FROM    PUB_FEATURE_DTS_LINK_TEMP a
146                 JOIN PUB_FEATURE_MEASUREMENT_INFO AS b ON a.pbi = b.pbi
147                                                           AND a.feature_name = b.feature_name
148                                                           AND a.version_id = @versionId
149                                                           AND a.pbi = @pbi
150 
151         PRINT ‘1. changed rows:‘ + CAST(@@rowcount AS VARCHAR(50))
152                                                           
153         UPDATE  a
154         SET     dts_feature_id = b.dts_feature_id
155         FROM    PUB_FEATURE_DTS_LINK_TEMP a
156                 JOIN PUB_FEATURE_DTS_INFO AS b ON a.pbi = b.pbi
157                                                   AND b.feature_id = ‘00000000‘
158                                                   AND a.dts_feature_name = b.dts_feature_name
159         WHERE   b.dts_feature_id IS NOT NULL
160                 AND a.pbi = @pbi
161                 AND a.version_id = @versionId
162 
163         PRINT ‘2. changed rows:‘ + CAST(@@rowcount AS VARCHAR(50))
164   
165         UPDATE  a
166         SET     feature_id = b.feature_id
167         FROM    PUB_FEATURE_DTS_INFO a
168                 JOIN PUB_FEATURE_DTS_LINK_TEMP b ON a.pbi = b.pbi
169                                                     AND b.version_id = @versionId
170                                                     AND b.pbi = @pbi
171                                                     AND a.feature_id = ‘00000000‘
172                                                     AND a.dts_feature_id = b.dts_feature_id
173         WHERE   b.feature_id IS NOT NULL
174                
175         PRINT ‘3. changed rows:‘ + CAST(@@rowcount AS VARCHAR(50))
176                   
177        
178 
179        
180         --DELETE  FROM PUB_FEATURE_LINK_IMPORT
181         --WHERE   version_id = @versionId
182         --        AND pbi = @pbi
183 
184 
185 
186 
187     END