What is delete command in sql?
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Why stored procedure is better than query?
suppose we have a table in which 200 rows. i want to find 101 row ? what the query.... and how we find 4th and 5th highest salary and 1 to 10 highest salary
How consistent is the view of the data between and within multiple sessions, transactions or statements ?
What are different types of statements supported by sql?
What are % type and % rowtype?
what is index? : Sql dba
What is difference between stored procedures and application procedures?
What does pragma mean?
Do foreign keys improve performance?
What is crud diagram?
3. Select sum(a) sum_1,max(a) max_1 ,count(a) count_1 from ( ( select 1 a from dual union all Select to_number(‘2011’) a from dual union all select 1 a from dual) union select 2 b from dual);
I have a table with 1 million records out of which 10,000 records are of unique records, then if I will implement index, then which type of index shall I use and why shall I use?
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