使用pgAdmin创建ERD

基本功能介绍

打开工具


详细使用介绍

新建表

设置表关系

1M表示一对多关系
MM表示多对多关系

一对多关系的设置

生成sql

-- This script was generated by the ERD tool in pgAdmin 4.
-- Please log an issue at https://redmine.postgresql.org/projects/pgadmin4/issues/new if you find any bugs, including reproduction steps.
BEGIN;


CREATE TABLE IF NOT EXISTS public.test
(
    id bigint NOT NULL,
    name character varying(100),
    PRIMARY KEY (id, name)
);

COMMENT ON TABLE public.test
    IS '测试表';

CREATE TABLE IF NOT EXISTS public.t2
(
    id bigint NOT NULL,
    fid bigint,
    PRIMARY KEY (id)
);

COMMENT ON TABLE public.t2
    IS '测试表2';

ALTER TABLE IF EXISTS public.t2
    ADD FOREIGN KEY (fid)
    REFERENCES public.test (id) MATCH SIMPLE
    ON UPDATE NO ACTION
    ON DELETE NO ACTION
    NOT VALID;

END;

抽取指定的数据库的ERD