随笔分类 - 数据库
摘要:DECLARE @defect_condition_TB TABLE (DefectName NVARCHAR(100)); INSERT INTO @defect_condition_TB (DefectName) VALUES (N'耐久'), (N'光学测定'); SELECT DefectN
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摘要:完整的语法如下:group_concat([DISTINCT] 要连接的字段 [Order BY 排序字段 ASC/DESC ] [Separator '分隔符']) 实例如下: select service_type, group_concat( DISTINCT currency Order B
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摘要:CREATE TABLE [dbo].[UserInfo]( [UserID] [int] IDENTITY(1,1) NOT NULL, [UserName] [nvarchar](50) NULL, [Phone] [nvarchar](50) NULL, [State] [int] NULL,
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