PostgreSQL 实现查询表字段信息SQL脚本
(编辑:jimmy 日期: 2024/11/25 浏览:3 次 )
查询格式:
SELECT c.relname 表名称, A.attname AS 字段名称, col_description(A.attrelid,A.attnum) AS 注释, format_type ( A.atttypid, A.atttypmod ) AS 类型, CASE WHEN A.attnotnull='f' THEN '否' ELSE '是' END AS 是否必填, a.attnum 序号 FROM pg_class AS c, pg_attribute AS a WHERE A.attrelid = C.oid AND A.attnum > 0 ORDER BY c.relname,a.attnum;
查询示例:
SELECT c.relname 表名称, A.attname AS 字段名称, split_part(col_description ( A.attrelid, A.attnum ),':',1) AS 注释, format_type ( A.atttypid, A.atttypmod ) AS 类型, CASE WHEN A.attnotnull='f' THEN '否' ELSE '是' END AS 是否必填, a.attnum 序号 FROM pg_class AS c, pg_attribute AS a WHERE c.relnamespace=16389 AND c.relname not like 'v_%' AND c.relname not like 'pk_%' AND c.relname not like 'unidx%' AND c.relname not like '%_index' AND c.relname not like '%_seq' AND c.relname not like '%_pkey' AND A.attrelid = C.oid AND A.attnum > 0 ORDER BY c.relname,a.attnum;
查询效果:
补充:postgresql 查询某一个表中的所有字段
postgresql 查询某一个表中的所有字段,也就是查询所有的列名
select * from information_schema.columns where table_schema='public' and table_name='表名称 ';
以上为个人经验,希望能给大家一个参考,也希望大家多多支持。如有错误或未考虑完全的地方,望不吝赐教。
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