leonheart 发表于 2018-10-14 14:28:58

Sql Server表相关的语句

  新建Sql Server表:
  create table [表名]
  (

  [自动编号字段] int>  [字段1] nVarChar(50) default \'默认值\' null ,
  [字段2] ntext null ,
  [字段3] datetime,
  [字段4] money null ,
  [字段5] int default 0,
  [字段6] Decimal (12,4) default 0,
  [字段7] image null ,
  )
  删除表:
  Drop table [表名]
  插入数据:
  INSERT INTO [表名] (字段1,字段2) VALUES (100,\'51WINDOWS.NET\')
  删除数据:
  DELETE FROM [表名] WHERE [字段名]>100
  更新数据:
  UPDATE [表名] SET [字段1] = 200,[字段2] = \'51WINDOWS.NET\' WHERE [字段三] = \'HAIWA\'
  新增字段:
  ALTER TABLE [表名] ADD [字段名] NVARCHAR (50) NULL
  删除字段:
  ALTER TABLE [表名] DROP COLUMN [字段名]
  修改字段:

  ALTER TABLE [表名]>
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