How do I add a primary key to a table?
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I have a Employee table with columns ename,eid,salary,deptno. How to retrieve sum of salary for each deptno?
What are the types of optimization?
I have a package in which a table was used in a procedure and compiled later i have dropped the table used in the package what would be the status of package specification and body
What is Temp Table and type of temp table?
what is the difference between to_char and to_date functions?
What is the difference between having clause and where clause?
What is constant in pl sql?
How to create an array in pl/sql?
how do you know if your mysql server is alive? : Sql dba
Can I learn sql in a week?
What is sql analyzer?
What are field types?
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