约束语法_内存溢出

sql

PostgreSQL 添加各种约束语法的 *** 作

1. 添加主键alter table goods add primary key(sid);2. 添加外键alter table orders add foreign key(goods_id) references goods(sid)

code
2022-5-14
44 0 0 0

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File: /www/wwwroot/outofmemory.cn/tmp/view_template_wqo_wpcom_htm_tag.htm, Line: 137, array_keys()
File: /www/wwwroot/outofmemory.cn/tmp/route_tag.php, Line: 115, include(/www/wwwroot/outofmemory.cn/tmp/view_template_wqo_wpcom_htm_tag.htm)
File: /www/wwwroot/outofmemory.cn/tmp/index.inc.php, Line: 174, include(/www/wwwroot/outofmemory.cn/tmp/route_tag.php)
File: /www/wwwroot/outofmemory.cn/index.php, Line: 30, include(/www/wwwroot/outofmemory.cn/tmp/index.inc.php)

PostgreSQL 添加各种约束语法的 *** 作