sql多行合并成一行 sql server SELECT [activityId], --STUFF( (SELECT ',' + Cast(A.phone AS varchar) FROM aaa A WHERE A.activityId=B.activityId FOR XML PATH('')) --,1,1,'') AS phonesFROM aaa BGROUP BY [activityId] mysql SELECTactivityId, group_concat(DISTINCT
mysql 无法退出sql命令行编辑 | ANBOBhttp://www.anbob.com/archives/579.html mysql 无法退出sql命令行编辑 - 码农甲乙丙 - CSDN博客https://blog.csdn.net/u012852597/article/details/78531071
sql语法:从一个表update到另外一个表 一. update a set a.name=b.name1 from a,b where a.id=b.id 二. update table1 set a.status = b.status from table1 a inner join table2 b on a.idl = b.idl
需求:编写一个从1循环到150并在每行打印一个值,另外在每个3的倍数行上打印出foo,在每个5的倍数行上打印biz,在每个7的倍数上打印baz. package study01; public class For { public static void main(String[] args) { for(int i = 1;i<=150;i++){ System.out.print(i); if(i%3==0){ System.out.print(" foo"); } if(i