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VPS服务器sqlserver,建主键-索引唯一键语句
2024/12/17 24次VPS服务器sqlserver,建主键-索引唯一键语句
--建主键ALTER TABLE [dbo].[t_test] ADD CONSTRAINT [PK_t_test] PRIMARY KEY CLUSTERED ( [id] ASC)WITH (SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF) ON [PRIMARY]--删主键IF EXISTS (SELECT * FROM sys.indexes WHERE object_id = OBJECT_ID(N'[dbo].[t_test]') AND name = N'PK_t_test')ALTER TABLE [dbo].[t_test] DROP CONSTRAINT [PK_t_test]--建索引CREATE NONCLUSTERED INDEX [t_test_index] ON [dbo].[t_test] ( [v1] ASC, [v2] ASC, [v3] ASC, [v4] ASC)WITH (SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF) ON [PRIMARY]--删除索引DROP INDEX [t_test_index] ON [dbo].[t_test] WITH ( ONLINE = OFF )--建唯一键ALTER TABLE [dbo].[t_test] ADD CONSTRAINT [t_test_unique] UNIQUE NONCLUSTERED ( [v1] ASC, [v2] ASC, [v3] ASC)WITH (SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF) ON [PRIMARY]--删除唯一键IF EXISTS (SELECT * FROM sys.indexes WHERE object_id = OBJECT_ID(N'[dbo].[t_test]') AND name = N't_test_unique')ALTER TABLE [dbo].[t_test] DROP CONSTRAINT [t_test_unique]
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