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我需要在我拥有的表中解决 SQL 中的问题。

我有一个表，其中包含具有路线的各种列（以及各种行）。IE

E:\文件.xml

我需要做的是，检查至少 10 个非常相似的列，然后搜索任何以 E:\ 开头的单词并将其替换为 C:。

有没有可以帮助我做到这一点的查询？还是我必须一一编辑（因为我认为这不是最聪明的方法）。

更新：表结构

CREATE TABLE [dbo].[CCARD_corporatives](
    [idCorporative] [int] IDENTITY(1,1) NOT FOR REPLICATION NOT NULL,
    [pathCFD] [varchar](128) NULL,
    [pathCertificateCFD] [varchar](128) NULL,
    [pathPrivateKeyCFD] [varchar](128) NULL,
 CONSTRAINT [PK_CCARD_corporatives] PRIMARY KEY CLUSTERED 
(
    [idCorporative] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]


SET IDENTITY_INSERT [dbo].[CCARD_corporatives] ON
INSERT [dbo].[CCARD_corporatives] ([idCorporative], [pathCFD], [pathCertificateCFD], [pathPrivateKeyCFD], ) VALUES (19, 'E:\file1.xml', 'E:\fil2e.xml', 'E:\file423.xml')
INSERT [dbo].[CCARD_corporatives] ([idCorporative], [pathCFD], [pathCertificateCFD], [pathPrivateKeyCFD], ) VALUES (33, 'E:\file1.xml', 'E:\filer2.xml', 'E:\file123.xml')
INSERT [dbo].[CCARD_corporatives] ([idCorporative], [pathCFD], [pathCertificateCFD], [pathPrivateKeyCFD], ) VALUES (34, 'E:\file1.xml', 'E:\filedsf.xml', 'E:\fil33e.xml')
INSERT [dbo].[CCARD_corporatives] ([idCorporative], [pathCFD], [pathCertificateCFD], [pathPrivateKeyCFD], ) VALUES (36, 'E:\file1.xml', 'E:\f4sdfile.xml', 'E:\fil44e.xml')
INSERT [dbo].[CCARD_corporatives] ([idCorporative], [pathCFD], [pathCertificateCFD], [pathPrivateKeyCFD], ) VALUES (37, NULL, NULL, NULL)
INSERT [dbo].[CCARD_corporatives] ([idCorporative], [pathCFD], [pathCertificateCFD], [pathPrivateKeyCFD], ) VALUES (38, NULL, NULL, NULL)
INSERT [dbo].[CCARD_corporatives] ([idCorporative], [pathCFD], [pathCertificateCFD], [pathPrivateKeyCFD], ) VALUES (40, NULL, NULL, NULL)
INSERT [dbo].[CCARD_corporatives] ([idCorporative], [pathCFD], [pathCertificateCFD], [pathPrivateKeyCFD], ) VALUES (41, NULL, NULL, NULL)
INSERT [dbo].[CCARD_corporatives] ([idCorporative], [pathCFD], [pathCertificateCFD], [pathPrivateKeyCFD], ) VALUES (42, 'E:\file1.xml', 'E:\filgbvdfe.xml', 'E:\fileg dfegdfs.xml')
INSERT [dbo].[CCARD_corporatives] ([idCorporative], [pathCFD], [pathCertificateCFD], [pathPrivateKeyCFD], ) VALUES (43, NULL, NULL, NULL)
INSERT [dbo].[CCARD_corporatives] ([idCorporative], [pathCFD], [pathCertificateCFD], [pathPrivateKeyCFD], ) VALUES (44, NULL, NULL, NULL)
INSERT [dbo].[CCARD_corporatives] ([idCorporative], [pathCFD], [pathCertificateCFD], [pathPrivateKeyCFD], ) VALUES (49, NULL, NULL, NULL)
INSERT [dbo].[CCARD_corporatives] ([idCorporative], [pathCFD], [pathCertificateCFD], [pathPrivateKeyCFD], ) VALUES (50, NULL, NULL, NULL)
INSERT [dbo].[CCARD_corporatives] ([idCorporative], [pathCFD], [pathCertificateCFD], [pathPrivateKeyCFD], ) VALUES (51, NULL, NULL, NULL)
INSERT [dbo].[CCARD_corporatives] ([idCorporative], [pathCFD], [pathCertificateCFD], [pathPrivateKeyCFD], ) VALUES (52, NULL, NULL, NULL)
INSERT [dbo].[CCARD_corporatives] ([idCorporative], [pathCFD], [pathCertificateCFD], [pathPrivateKeyCFD], ) VALUES (53, NULL, NULL, NULL)
INSERT [dbo].[CCARD_corporatives] ([idCorporative], [pathCFD], [pathCertificateCFD], [pathPrivateKeyCFD], ) VALUES (56, 'E:\file1.xml', 'E:\file0067.xml', 'E:\file4323.xml')
INSERT [dbo].[CCARD_corporatives] ([idCorporative], [pathCFD], [pathCertificateCFD], [pathPrivateKeyCFD], ) VALUES (57, 'E:\file1.xml', 'E:\file4234.xml', 'E:\fil555e.xml')
INSERT [dbo].[CCARD_corporatives] ([idCorporative], [pathCFD], [pathCertificateCFD], [pathPrivateKeyCFD], ) VALUES (64, NULL, NULL, NULL)
INSERT [dbo].[CCARD_corporatives] ([idCorporative], [pathCFD], [pathCertificateCFD], [pathPrivateKeyCFD], ) VALUES (82, NULL, NULL, NULL)
INSERT [dbo].[CCARD_corporatives] ([idCorporative], [pathCFD], [pathCertificateCFD], [pathPrivateKeyCFD], ) VALUES (83, 'E:\file1.xml', 'E:\file443.xml', 'E:\fil4324e.xml')
SET IDENTITY_INSERT [dbo].[CCARD_corporatives] OFF
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1 回答 1

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如果要更新实际上具有任何以 e:\ 开头的值的每一列，请尝试以下操作：

UPDATE [CCARD_corporatives]
SET pathCFD = CASE 
            WHEN pathCFD LIKE 'e:\%' 
            THEN REPLACE(pathCFD,'e:\','c:\') 
            ELSE pathCFD 
           END,
         pathCertificateCFD = CASE 
                        WHEN pathCertificateCFD LIKE 'e:\%' 
                        THEN REPLACE(pathCertificateCFD,'e:\','c:\') 
                        ELSE pathCertificateCFD 
                    END,
        pathPrivateKeyCFD = CASE 
                        WHEN pathPrivateKeyCFD LIKE 'e:\%' 
                        THEN REPLACE(pathPrivateKeyCFD,'e:\','c:\') 
                        ELSE pathPrivateKeyCFD 
                    END;
于 2013-08-30T18:17:26.007 回答