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Related Questions |
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What are the data types allowed in a table ?
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What is difference between CHAR and VARCHAR2 ? What is the maximum SIZE allowed for each type ?
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How many LONG columns are allowed in a table ? Is it possible to use LONG columns in WHERE clause or ORDER BY ?
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What are the pre requisites ?
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Where the integrity constraints are stored in Data Dictionary ?
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How will you a activate/deactivate integrity constraints ?
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If an unique key constraint on DATE column is created, will it validate the rows that are inserted with SYSDATE ?
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What is a database link ?
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How to access the current value and next value from a sequence ? Is it possible to access the current value in a session before accessing next value ?
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What is CYCLE/NO CYCLE in a Sequence ?
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What are the advantages of VIEW ?
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Can a view be updated/inserted/deleted? If Yes under what conditions ?
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If a View on a single base table is manipulated will the changes be reflected on the base table ?
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