oracle composite key
2009年8月29日 — In Oracle, you could do this: create table D ( ID numeric(1), CODE varchar(2), constraint PK_D primary key (ID, CODE) );. ,create table T ( x int, y int, z int, constraint t_pk primary key (x,y) ); by using a table level constraint. Additionally you ...
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 oracle composite key 相關參考資料
Composite key - Oracle FAQ
2019年4月3日 — A composite key is a key (primary or alternate) that consists of more than one column. Oracle will create a composite key index on the table to ... https://www.orafaq.com How to add composite primary key to table - Stack Overflow
2009年8月29日 — In Oracle, you could do this: create table D ( ID numeric(1), CODE varchar(2), constraint PK_D primary key (ID, CODE) );. https://stackoverflow.com How to define a composite primary key - Ask TOM - Oracle
create table T ( x int, y int, z int, constraint t_pk primary key (x,y) ); by using a table level constraint. Additionally you ... https://asktom.oracle.com Is a composite primary key a good idea? - Ask TOM - Oracle
I'd have to insert these same values as a composite foreign key in a number of other tables. Would there be any performance issues raised when linking via ... https://asktom.oracle.com Oracle composite primary key foreign key question - Stack ...
2013年9月11日 — The error is because the FOREIGN KEY is one column, but you're trying to supply two columns as the parent. There's no need to tie to the ... https://stackoverflow.com SQL - how to create composite primary key - Stack Overflow
I am working on creating a composite primary. I want to make a combination of attributes as primary key while creating a table. I am working on Oracle 10g ... https://stackoverflow.com SQL COMPOSITE KEY - javatpoint
Oracle: CREATE TABLE SAMPLE_TABLE; CREATE ... https://www.javatpoint.com UNIQUE Constraints
Defining Composite Primary Keys. A composite primary key is a primary key made up of a combination of columns. Oracle creates an index on the columns of a ... http://www.baskent.edu.tr |