What are the operators used in select statements?
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What is window clause?
How to display the contents of a current record fetched in a reference cursor?
how to convert character strings to numeric values? : Sql dba
I want to display the employees who have joined in last two months. (It should be executed randomly means If I execute the query in March it should display Jan and Feb joined employees. Same query if i execute in Feb, 2007 it should display dec, 2006 and jan 2007 joined employees.
What is db journal file?
How to execute OS(operating system) command from pl/sql?
what are the limitations of identity column? : Transact sql
define a variable representing the expression used to calculate on emps total annual remuneration.use the variable in a statement which finds all emps who can earn 30000 a year or more.
how to return query output in html format? : Sql dba
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What is a primary key, and how is it different from a unique key?
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