Answer Posted / Vikash Raj
A foreign key is needed in a database to establish a relationship between tables by referencing the primary key of another table. This helps maintain data integrity and consistency across multiple tables.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
How do I remove duplicates in two columns?
what is schema? : Sql dba
What is the current version of postgresql?
how many tables will create when we create table, what are they? : Sql dba
define sql insert statement ? : Sql dba
what is collation? : Sql dba
What is your daily office routine?
what is dbms? : Sql dba
Does group by remove duplicates?
If a cursor is open, how can we find in a pl/sql block?
what are all the common sql function? : Sql dba
Hi am new to PLSQL & facing problems in writing code like in SP, Functions, so any one having some SP coding with in depth explanation please share with me my Email ID suvarnaatsuvarna@rediffmail.com Or taking tanning on this please do contact me
What is the best sql course?
what are aggregate and scalar functions? : Sql dba
Is primary key always clustered index?
