SQL INTERVIEW QUESTION & ANSWERS
56. |
Where are Jserv log files located? |
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Thejserv log files are located in the $IAS_ORACLE_HOME/ Apache /Jserv/log directory and in the format mod_jscrv.log. |
57. |
Where do I find the log files of the patch? |
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The patch log files are located in the $APPL_TOP/admin/
$TYVO_TASK/log directory. The default name of the patch
log file is adpatch.log but it is recommended to change it as patch drivcr.log in order to identify* the patch log easily.
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58. |
What is Join? |
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Joins are used to combine the result set of one or
more tables. A join operation can be performed whenever two or more tables are listed in the FROM clause of an SQL statement.
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59. |
What are the types of outer joins? |
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There are three types of outer joins :
- LEFT OUTER JOIN
- RIGHT OUTER JOIN and
- FULL OUTER JOIN
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60. |
What is full outer join? |
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The FULL OUTER JOIN returns all those rows from both the tables, where the rows from one table match with the rows from the other table.
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