What is parameter substitution in sql?
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What are the usages of sql?
Fetch an entire row from the employees table for a specific employee ID:
How to execute multiple sql statements in a single annonymous block irrespective of the sql statement result?
what are null values? : Sql dba
Does oracle roll back the transaction on an error?
Are pl sql variables case sensitive?
Enlist the data types that can be used in pl/sql?
how to install mysql? : Sql dba
there are 2 variables called x and y ,x contains 1,2 and y contains 3,4 we have to swap the values from x to y and y to x with out using dummy variables and it can be done only by using a single statement ? how?
Why query optimization is needed?
What is the difference between between and in condition operators?
Which nosql database is best?
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