1、简单循环示例

do $$
beginfor cnt in 1..10 loopraise notice 'cnt: %', cnt;end loop;
end; $$

navicate中执行

2、循环查询

do $$
declare_record record;
beginfor _record in (SELECT version,description FROM flyway_schema_history ORDER BY installed_rank desc limit 5) LOOPraise notice 'cnt: % ,%', _record.version, _record.description;END LOOP;
END; $$;

3、循环修改多张表

do $$
declare
_record text;
begin
for _record in (SELECT table_name FROM information_schema.tables WHERE table_schema = 'public' AND table_name LIKE '%work_manage%')LOOPEXECUTE 'ALTER TABLE ' || _record || ' ADD COLUMN soft_bin_result int4;';EXECUTE 'COMMENT ON COLUMN ' || _record || '.soft_bin_result IS ''软件bin'';';EXECUTE 'ALTER TABLE ' || _record || ' ADD COLUMN actual_temp float8;';EXECUTE 'COMMENT ON COLUMN ' || _record || '.actual_temp IS ''实际温度'';';
END LOOP;
END; $$;