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Computer Database
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What is the parameter substitution symbol used with INSERT INTO command?
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State the several languages into which SQL is divided into?
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Difference between SUBSTR and INSTR?
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What is correlated subquery?
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I have a table with duplicate names in it. Write me a query which returns only duplicate rows with number of times they are repeated.
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Cursor Syntax brief history
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What is diffrence between Co-related sub query and nested sub query??
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Given an unnormalized table with columns:
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How to find second maximum value from a table?
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How to Select last N records from a Table?
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What will be the output of the following query
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Why do we use cache and no cache in sequences? What is the benefit we have in using them?
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How to copy sql table.
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What operators performs pattern matching?
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What is joint?
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How to write a sql statement to find the first occurrence of a non zero value?
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Write a Query to pull out the maximum unit price for each in the database. (Using Northwind database)
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What is the advantage to use trigger in your PL?
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Identify error in following SQL: SELECT EMPNO, SUM(SAL) FROM EMP GROUP BY EMPNO HAVING ENAME= ?KENT? a) Syntax Error b) SUM() is not an aggregate function c) HAVING can not be used with GROUP BY d) The Having condition has to be based on some column that
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Difference between Store Procedure and Trigger
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Uncaught TypeError: extract(): Argument #1 ($array) must be of type array, null given
Fatal error: Uncaught TypeError: extract(): Argument #1 ($array) must be of type array
HTTPS is invalid and might prevent it from being indexed
Deprecated: Required parameter $sql follows optional parameter $name in
Fatal error: Uncaught TypeError: count(): Argument #1 ($value) must be of type Countable|array, null
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