Question

我想在SQL中创建系列数据以用于测试目的。

实施例。

SELECT Entry.* FROM Entry WHERE body LIKE ?

我想在SQL中创建类似上述方式的1000条记录。谁能建议我解决方案？

谢谢

Answer 1

如果您正在使用SQL Server，则可以通过recursive方式执行此操作：

with series as (
       select 1 as id
       union all
       select id+1
       from series 
       where id < 1000
)
select concat('Product', id)
from series s
option (maxrecursion 1000);

Answer 2

使用ad-hoc计数表

的另一个选项

示例

Select Top 1000 Product=concat('Product',Row_Number() Over (Order By (Select NULL))) From master..spt_values n1

<强>返回

Product1 Product2 Product3 Product4 ... Product998 Product999 Product1000

Answer 3

你走了：

DECLARE @temp TABLE(
    Products VARCHAR(15)
);

DECLARE @counter INT
SET @counter = 1
WHILE (@counter <= 1000)
BEGIN
INSERT INTO @temp
VALUES('Product'+CONVERT(VARCHAR(5),@counter));
SET @counter = @counter + 1
END
SELECT * FROM @temp;

Answer 4

这应该让你开始。

DECLARE @table table (Product varchar(200))

DECLARE @cnt INT; SET @cnt = 0
WHILE @cnt <=10
BEGIN
SET @cnt = @cnt + 1
insert into @table
SELECT 'Product' +CAST(@cnt as varchar(150))

END

select * from @table

Answer 5

基于集合的CTE可以快速生成测试数据。更好的是一个数字（a.k.a.）数字表。

WITH 
     t10 AS (SELECT n FROM (VALUES(0),(0),(0),(0),(0),(0),(0),(0),(0),(0)) t(n))
    ,t1k AS (SELECT ROW_NUMBER() OVER (ORDER BY (SELECT 0)) AS num FROM t10 AS a CROSS JOIN t10 AS b)
SELECT 'Product' + CAST(num AS varchar(10))
FROM t1k;

我想在SQL中创建系列数据

5 个答案: