How many types of database triggers can be specified on a table ? What are they ?

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what is difference between pass by value and eference by value in oracle plsql

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How to select unique records from a table?

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What is the trigger in sql?

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What are inner and outer joins examples of both?

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First round ------------------- - Procedure - Packages - Views - Virtual tables - Can we use dcl with in function? - Joins and few scenarios - Triggers and its type - Pragma, type and its functionality - How to create db link in oracle - Materialized view - How to find duplicate values from table? - Cursor and its functionality - Write a script to display friday and its date from a entire year. - Exception Handling Second round ------------------------ Gave a scenario like. Need to write a function to perform. When user try to change a password. It must not be last five password and a given password can be combination of characters, symbols, upper and lower case.

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What is trigger in pl sql with examples?

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I am creating an index on Emp table Empno column,if u using this indexed column in ur SELECT stmt. where clause,then how do u know that yr index will be working or nor? Thanks Advance...

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Write the order of precedence for validation of a column in a table ?

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What is use of term?

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What are the differences between in and exists clause?

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What are the key differences between SQL and PL SQL?

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