What is delete command in sql?
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What is row_number () in sql?
What is pl/sql table? Why it is used?
What is difference between hql and sql?
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
Which is faster count (*) or count 1?
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what are numeric data types? : Sql dba
Explain the significance of the & and && operators in pl sql.
what is self-join? : Sql dba
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What are the topics in pl sql?
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