What do the following mean in an sql sytax:
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(+) after a condition eg: ‘WHERE table1.col1 = table2.col2 (+)
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What does /* */ after select signify , i vaguely remember it being a suggestion to the optimizer, but where can i find more reference on this eg: select /* */ …
The
(+)means an outer join syntax for SQL on Oracle.The
/*alter the SELECT means a comment. In Oracle if the comments starts with/*+(A plus after the comment token, means a hint, for instance/*+ORDERED*/