what is foreign key? : Sql dba
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What are different types of triggers?
How many row comparison operators are used while working with a subquery?
Let us suppose we have a table with structure in order empno empname empdesig empcountry and now i want to re-organize the columns of this table to empno empdesig empname empcountry how can i do this with queries ? assume that table contains the data.
Explain architecture of sql server notification services?
what are wild cards used in database for pattern matching ? : Sql dba
what is self-join? : Sql dba
What is a database trigger ? Name some usages of database trigger ?
What is a Procedure ?
what are the differences among rownum, rank and dense_rank? : Sql dba
Mention what pl/sql package consists of?
Difference between global and parameter variables?
What is a 'instead of trigger'?
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