what is a relationship and what are they? : Sql dba
what is 'mysqlimport'? : Sql dba
Are stored procedures compiled?
Explain the structure of pl/sql in brief.
How many null values can be inserted in a coulmn whihc is unique constraint
Are pl sql variables case sensitive?
What are the cursor attributes used in PL/SQL ?
What is a merge query?
What is nvl function?
What is natural join in sql?
What is the difference between UNIQUE CONSTRAINT and PRIMARY KEY? 1. There is no difference. 2. A PRIMARY KEY cannot be declared on multiple columns. 3. A UNIQUE CONSTRAINT cannot be declared on multiple columns. 4. A table can have multiple PRIMARY KEYS but only one UNIQUE CONSTRAINT. 5. A table can have multiple UNIQUE CONSTRAINTs but only one PRIMARY KEY.
what is explain plan?, given an example...
Two Methods of retrieving SQL?
7 Answers Atiric Software, Microsoft, Oracle, TCS, Wipro,