What is a common use of group by in sql?
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While inserting/updating million of records into a database table, how do I came to know how many records has been inserted or updated successfully so far?
What are the different types of dbmss?
Explain raise_application_error.
Delete the emps whose salaries are lowest sals of their own dept.
Give which cursor is better for better performance means type of cursors?
how to delete an existing column in a table? : Sql dba
What is the difference between mdf and ndf files?
how to retrieve last tree records from table? select *from emp where rownum > (select count(*)-3 from emp); i am using this query to get last three records from table but its not giving any output, so please tell me what is the error in this query.
What is update query?
What sql database should I use?
what is the difference between implicit conversions and explicit conversions?
What are the most important characteristics of pl/sql?
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