HTN20190109 https://blog.hatena.ne.jp/HTN20190109/ HTN20190109の日記 https://htn20190109.hatenablog.com/ 演習 https://docs.oracle.com/cd/F19136_01/sqlrf/ALTER-TABLE.html drop table tab1 purge;drop table tab2 purge; create table tab1(col1 int, col2 int);create table tab2(col1 int, col2 int, col3 int); alter table tab1 add constraint pk1 primary key(col1);alter table tab2 add constraint pk2 primary key(col1,c… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtn20190109.hatenablog.com%2Fentry%2F2024%2F11%2F02%2F145255" title="{データベースの作成その他}制約名を変更 - HTN20190109の日記" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2024-11-02 14:52:55 rich https://htn20190109.hatenablog.com/entry/2024/11/02/145255 1.0 100%