1,字段附加字符串更新、根据字段长度查询
update "user" set identity_number = concat('null_', identity_number) where length(identity_number)= 32;
2,递归查询部门层级关系
WITH RECURSIVE T(id,code) AS( SELECT id,code FROM department WHERE code ='xxxxx' and flag=0 UNION ALL SELECT T1.id,T1.code FROM department T1 JOIN T ON T1.parent_id=T.id and T1.flag=0 )select code from T;
3,查询父级部门code及其name路径
select string_agg(dt.name, '/' order by sort desc) as path, string_agg(dt.code, '/' order by sort desc) as code_path from (with recursive departmentTree as ( select d.* from department d where d.flag = 0 and d.code = 'xxxxxx' union all select d1.* from department d1 join departmentTree as B on d1.id = B.parent_id) select departmentTree.name, departmentTree.code, row_number() over () as sort from departmentTree) dt;
4,