oracle modify primary key
Assuming that your table name is city and your existing Primary Key is pk_city , you should be able to do the following: ALTER TABLE city DROP CONSTRAINT ... ,An easier alternative is to insert a new row and delete the old one. (Update any referencing rows in other tables before you do the delete).
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 oracle modify primary key 相關參考資料
ALTER TABLE statement - Oracle Docs
The ALTER TABLE statement allows you to: .... ALTER TABLE ADD UNIQUE or PRIMARY KEY provide a shorthand method of defining a primary key composed ... https://docs.oracle.com Change Primary Key - Stack Overflow
Assuming that your table name is city and your existing Primary Key is pk_city , you should be able to do the following: ALTER TABLE city DROP CONSTRAINT ... https://stackoverflow.com Change primary key value in Oracle - Stack Overflow
An easier alternative is to insert a new row and delete the old one. (Update any referencing rows in other tables before you do the delete). https://stackoverflow.com CONSTRAINT SQL運用@ oracle園地:: 痞客邦::
項目PRIMARY KEY 單一PRIMARY KEY 複合建立CREATE TABLE customer( ... alter table sales add constraint sales_pk primary key(cust_id ... http://oracled2k.pixnet.net Modify primary key - Toolbox
" Can we modify a primary key to a composite key, if so how? please help. ... On 3/14/08, brian_ingold via oracle-sql-l <[email protected]> wrote ... https://it.toolbox.com Modify Primary Key Using Index | Richard Foote's Oracle Blog
Posts about Modify Primary Key Using Index written by Richard Foote. ... One of the things I love about working with Oracle Database technologies is that there's ... https://richardfoote.wordpress Oracle PLSQL: Primary Keys - TechOnTheNet
https://www.techonthenet.com Oracle 12c: How can I modify an existing primary key column to an ...
You can't turn an existing column it into a real identity column, but you can get a similar behaviour by using a sequence as the default for the column. https://stackoverflow.com UPDATE PRIMARY KEY - Ask Tom - Oracle
please let me know how can i update a record in the primary key field which behaves as a foreign key to other tables without altering (disabling) ... https://asktom.oracle.com 修改和删除primary key的sql语句是什么?-CSDN论坛
oracle约束+disable与enable约束+为表添加约束+修改表约束的状态+primary key+not null+unique+foreign key+外键删除数据，可以使用的级联操作: oracle约束 ... https://bbs.csdn.net |