数据库插入并选择问题

Question

为什么我发现很难在表中插入超过7个值？ 当我选择它时，只检索7个值

Answer 1

SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED IF OBJECT_ID('dbo.TABLE1') IS NOT NULL DROP TABLE dbo.TABLE1 CREATE TABLE dbo.TABLE1 (ACC_ID INT IDENTITY(1,1) NOT NULL ,DT SMALLDATETIME ,DR NUMERIC(20,4) ,CR NUMERIC(20,4) PRIMARY KEY (ACC_ID,DT)) DECLARE @VAR INT = 0 WHILE @VAR < 100 BEGIN INSERT INTO dbo.TABLE1(DT,DR,CR) SELECT '2014-01-05',20+@VAR^2,@VAR + 100 SET @VAR = @VAR + 1 END