SAP DB:ODBC Spécifications Page 167

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<Parameter Name="JOIN">YES</Parameter>
Specifies if the database supports a JOIN operation between two tables.Description
YES: the database supports joins with between any columns of two ta-
bles.
STRUCTURE_JOIN: the database supports joins between two tables
that are related with referential constraints. Is identical to NO in this re-
lease.
NO: the database does not support joins between two tables.
Values
13.1.17 LEFT_EXT_JOIN
<Parameter Name="LEFT_EXT_JOIN">YES</Parameter>
Specifies if the database supports left external joins.Description
YES: the database supports left external joins.
NO: the database does not support left external joins.
Values
13.1.18 LEFT_OUTER
<Parameter Name="LEFT_OUTER">$(+)</Parameter>
<Parameter Name="LEFT_OUTER">$*</Parameter>
Specifies the syntax to be used for left outer join expressions.Description
2012-03-15167
PRM parameter reference
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