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SQLite 外键 级联更新 删除,sqlite

SQLite 外键 级联更新 删除,sqlite


自身关联

CREATE TABLE Business (ID varchar(50) NOT NULL PRIMARY KEY,Name varchar(200) NOT NULL,"Parent_ID" varchar(50),ConfigurationPage boolean NOT NULL,
FOREIGN KEY(Parent_ID) REFERENCES Business(ID) on delete cascade
)

删除

 PRAGMA foreign_keys=ON;delete from business where [ID]=1

www.htsjk.Com true http://www.htsjk.com/SQLite/35505.html NewsArticle SQLite 外键 级联更新 删除,sqlite 自身关联 CREATE TABLE Business (ID varchar(50) NOT NULL PRIMARY KEY,Name varchar(200) NOT NULL,"Parent_ID" varchar(50),ConfigurationPage boolean NOT NULL, FOREIGN KEY(Parent_ID) REFERENCES Busi...
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