What does select count (*) mean in sql?
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How can we find duplicate records in a table?
Give an example of any procedure.
5 Answers Accenture, iFlex, Wipro,
In a table i have columns A,B,C and i have a composite index on columns A,B if so will the following query uses index or not? SELECT sal,name FROM <table_name> WHERE A=<value> AND B=<value> AND C=<value>;
What is indexing oracle sql?
What is view? Can we update view
Which one is better subquery or joins?
Write the order of precedence for validation of a column in a table? I. Done using database triggers. Ii. Done using integarity constraints
what is bcp? When does it used? : Sql dba
What is sqlcontext?
Which is better join or subquery?
How to revise and re-run the last sql command?
List the different type of joins?
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