如何在 PostgreSQL 中获取表的列表列名和数据类型? [英] How to get a list column names and datatypes of a table in PostgreSQL?

问题描述

如何使用查询获取 PostgreSQL 中表的列名和数据类型列表?

How can I get a list of column names and datatypes of a table in PostgreSQL using a query?

推荐答案

SELECT
        a.attname as "Column",
        pg_catalog.format_type(a.atttypid, a.atttypmod) as "Datatype"
    FROM
        pg_catalog.pg_attribute a
    WHERE
        a.attnum > 0
        AND NOT a.attisdropped
        AND a.attrelid = (
            SELECT c.oid
            FROM pg_catalog.pg_class c
                LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
            WHERE c.relname ~ '^(hello world)$'
                AND pg_catalog.pg_table_is_visible(c.oid)
        );

更多信息:http://www.postgresql.org/docs/9.3/static/catalog-pg-attribute.html

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