根据查询结果动态生成sql插入语句 [英] dynamically generate sql insert statements from results of a query

问题描述

我必须根据db2和oracle数据库的查询结果生成一系列插入语句.实际上是通过这样的查询

I have to generate a series of insert statements based on the results of a query for a db2 and oracle databases. In practice from a query like this

select g.id from SUV_OWNER.gruppi g 
WHERE EXISTS (SELECT 1 FROM SUV_OWNER.GRUPPIRUOLIPROCEDURE grp WHERE grp.gruppoid=g.gruppoid 
AND GRP.RUOLOID = 50)
AND 
G.CHIAVE LIKE 'ANA%';

生成一个输出序列，该序列事先不知道

which generates as output a sequence of numbers not known in advance as

30000  
30001  
.....  

我必须为每个数字生成一个插入语句，作为

I have to generate for each number an insert statement as

insert into SUV_OWNER.GRUPPIRUOLIPROCEDURE (GRUPPOID, RUOLOID, PROCEDURAID) values  (30000, 141, 7);  
insert into SUV_OWNER.GRUPPIRUOLIPROCEDURE (GRUPPOID, RUOLOID, PROCEDURAID) values  (30001, 141, 7);

我是sql的新手，如何生成此插入序列?

I'm a newbie in sql, how can i generate this sequence of inserts ?

感谢您的帮助

推荐答案

非常简单.只需使用您现有的查询，然后修改您的SELECT以将INSERT语句与g.id值连接起来即可.

It's pretty easy. Just take your existing query, and modify your SELECT to concatenate the INSERT statement with the g.id value.

仅供参考:||是Oracle的字符串连接运算符.我对DB2不熟悉，但是我相信它支持用于连接字符串的相同语法.因此查询应该对两个数据库都有效(希望如此).

FYI: || is Oracle's string concatenation operator. I'm not familiar with DB2, but I believe it supports the same syntax for concatenating strings. So the query should work for both databases (I hope).

select 'insert into SUV_OWNER.GRUPPIRUOLIPROCEDURE (GRUPPOID, RUOLOID, PROCEDURAID) values (' || g.id || ', 141, 7);'
from SUV_OWNER.gruppi g 
WHERE EXISTS (
  SELECT 1 
  FROM SUV_OWNER.GRUPPIRUOLIPROCEDURE grp 
  WHERE grp.gruppoid=g.gruppoid 
  AND GRP.RUOLOID = 50)
AND G.CHIAVE LIKE 'ANA%';

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