insert函数小记与stuff函数对比

    
-- insert函数
SELECT
    id,
    ( INSERT ( ( SELECT group_concat( realname ) FROM staff_tbl WHERE psn = 'c0c2c19c-9bb4-11e8-9d65-000c2964' ), 3, 2, 'zz' ) ) AS myIdea 
FROM
    staff_tbl a 
GROUP BY
    id
结果如下：将boss改成bozz
1    bozz,赵潜,孙黎
2    bozz,赵潜,孙黎
57    bozz,赵潜,孙黎
 

-- stuff函数
stuff (( SELECT ',' + realname FROM staff_tbl WHERE psn = 'c0c2c19c-9bb4-11e8-9d65-000c2964' FOR XML path ( '' ) ),1,1,'')