Please explain compound trigger in oracle?
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types of indexes and the rationale behind choosing a particular index for a situation.
Using the relations and the rules set out in the notes under each relation, write statements to create the two sequence generators specified in the notes.
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Explain oracle’s system global area (sga).
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Give SQL Query to find the number words in a sentence ? ex: 'ram charan singh' then ans:3 Answer:select length(trim('ram charan singh')) - length (replace (trim ( 'ram charan singh'),' ','')) +1 from dual The above query working properly when space between the words is only one &similar But ,If the space between the words is nonuniform. Ex:'ram charan singh is good' ans:5 i am not getting this answer using above query.
How to display First 4 rows From Database Table?