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Code Issues

Corrections, thanks to Claudio.

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dimitr 2006-01-10 07:59:54 +00:00
parent a2c2baeee7
commit 43e6fc05c8
1 changed files with 8 additions and 2 deletions
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10
doc/sql.extensions/README.select_expressions
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@ -31,7 +31,13 @@ Syntax rules:
<table name> | <joined table> | <derived table>
<joined table> ::=
<table expression> [{INNER | {LEFT | RIGHT | FULL} [OUTER] | CROSS}] JOIN <table expression>
{<cross join> | <qualified join>}
<cross join> ::=
<table expression> CROSS JOIN <table expression>
<qualified join> ::=
<table expression> [{INNER | {LEFT | RIGHT | FULL} [OUTER]}] JOIN <table expression>
ON <join condition>
<derived table> ::=
@ -39,7 +45,7 @@ Syntax rules:
Conclusions:
* For update mode and row locking can only be performed for a final dataset,
* FOR UPDATE mode and row locking can only be performed for a final dataset,
they cannot be applied to a subquery
* Unions are allowed inside any subquery
* Clauses FIRST, SKIP, PLAN, ORDER BY, ROWS are allowed for any subquery