What is secondary key?
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what is online transaction processing (oltp)? : Sql dba
How to change a value of the field ‘salary’ as 7500 for an employee_name ‘john’ in a table employee_details?
What is the difference between DELETE and TRUNCATE?
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how can I make a script that can be bi-language (supports english, german)? : Sql dba
Table 1: col1 Timestamp ---------------- 01-mar-2012 11:12:46 Table 2: col2 Timestamp -------------------- 01-mar-2012 11:12:10 01-mar-2012 11:11:23 Write a query to display a row with table2 col2 value less than tabl1 col1 value. Maximum timestamp value previous to table1 col1 value. Display a result as: Col1 col2 ----- ----- 01-mar-2012 11:12:46 01-mar-2012 11:12:10
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display your age in months?
what are set operators in sql? : Sql dba
How many types of cursors are available in pl/sql?
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