List the ways to get the count of records in a table?

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what is the difference between union and union all? : Sql dba

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write a query to find 4th max salary

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What is sql profiling in oracle?

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how to eliminate null values in a column i.e table vlaues 1 2 3 NULL 3 4 1 5 NULL i want output like this 1 2 3 3 4 1 5 i dnt want to use nvl is null and i dnt want replace the NULL value with any value i.e nvl(col,o);

11 Answers   Satyam,

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What is a sql statement?

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What is auto increment?

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Which one is better sql or oracle?

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what is an associative array with example?

1 Answers  

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how can you see all indexes defined for a table? : Sql dba

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What is %type in pl sql?

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what are the authentication modes in sql server? How can it be changed? : Sql dba

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