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Which one of the following pairs of aggregate functions do you use with character fields? 1. COUNT(field) and MAX(field) 2. AVG(field) and COUNT(field) 3. MIN(field) and SUM(field) 4. AVG(field) and MAX(field) 5. COUNT(field) and SUM(field)6 11226
Which clause of an UPDATE statement allows you to affect only certain rows of a table? 1. The WHERE clause 2. The SET clause 3. The ROWS AFFECTED clause 4. The ORDER BY clause6 9180
If you want a column to be part of the result set, after which SQL keyword does it belong? 1. SELECT 2. FROM 3. WHERE 4. GROUP BY 5. HAVING10 13921
Types of locks in database ?8 70870
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Write one update command to update seqno field of a table on the basis of row number.4 13836
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what are the differences among these table level lock modes - IN SHARE MODE, IN SHARE UPDATE MODE, IN EXCLUSIVE MODE ?3 8561
i want to display 1 to 10 numbers using one select statement.18 31491
what is the difference between varray and table data type..please expalain with some examples... under what situation you will go for varray..instead of index by table...1 2433
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