隨機化日期SQL

Question

能否請你幫：

我有一個需要5000行增加了它與隨機日期從2010年度

例如一個抵達的日期列：01/01/2010，25/8/2010，03/05/2010，31/12/2010等

我認爲這將是一個INSERT聲明，但我不確定。

感謝

韋恩

USE Occupancy 
CREATE TABLE Book 
(BookNumber varchar(30), 
ArrivalDate int) 

DECLARE @BookNumber varchar(30) 
DECLARE @ArrivalDate int 

SET @BookNumber = 1 
SET @ArrivalDate = 0 

WHILE @BookNumber <= 5000 
WHILE @ArrivalDate <= 5000 

BEGIN 
INSERT INTO Book (BookNumber,ArrivalDate) 
SELECT 'B' + Right ('00000000' + CAST(@BookNumber AS varchar(30)),8), 
DATEADD(day, CAST(RAND() * 365 as int), '2010-1-1') 

SET @BookNumber = @BookNumber + 1 
SET @ArrivalDate = @ArrivalDate + 1 
END 

Answer 1

DECLARE @counter int 
SET @counter = 0 
WHILE @counter < 5000 
BEGIN 
    INSERT INTO myTable (arrivalDate) 
    SELECT DATEADD(day, CAST(RAND() * 365 as int), '2010-1-1') 
    SET @counter = @counter + 1 
END 

如果你有一個數字表或generator，則可避免循環：

INSERT INTO myTable (arrivalDate) 
SELECT DATEADD(day, ABS(CHECKSUM(NEWID()) % 365), '2010-1-1') 
FROM (GenerateRowNumbers(5000, 1)) t