In Oracle SQL / PLSQL a FOREIGN KEY is column / field that appears in one table and must appear in another table. Important points about FOREIGN KEY in Oracle SQL / PLSQL: A FOREIGN KEY in Oracle SQL / PLSQL creates a parent child pattern between two tables. The referenced table is called the […]
FOREIGNKEYPLSQL
FOREIGN KEY with ON DELETE SET NULL in Oracle SQL – PLSQL
In Oracle SQL / PLSQL a FOREIGN KEY is column / field that appears in one table and must appear in another table. Important points about FOREIGN KEY ON DELETE SET NULL in Oracle SQL / PLSQL: A FOREIGN KEY creates a parent child pattern between two tables. The referenced table is called the PARENT […]
FOREIGN KEY with ON DELETE CASCADE in Oracle SQL – PLSQL
In Oracle SQL / PLSQL a FOREIGN KEY is column / field that appears in one table and must appear in another table. Important points about FOREIGN KEY ON DELETE CASCADE in Oracle SQL / PLSQL: A FOREIGN KEY creates a parent child pattern between two tables. The referenced table is called the PARENT table […]
FOREIGN KEY in Oracle SQL – PLSQL
In Oracle SQL / PLSQL a FOREIGN KEY is column / field that appears in one table and must appear in another table. Important points about FOREIGN KEY in Oracle SQL / PLSQL: A FOREIGN KEY creates a parent child pattern between two tables. The referenced table is called the PARENT table and the table […]