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SYNTAX:
 
xpxGetQuery (schemaName, querySchemaName, queryName : STRING;
VAR queryId                           : GENERIC)
status                                : INTEGER;
 
The xpxGetQuery function returns a queryId that uniquely identifies an EDMquery function in the EDMdatabase. The query id is uniquely specified by the three arguments <schemaName>, <querySchemaName> and <queryName>.
The constant xpxNullId is returned when no matching query is found.
This function is equivalent to the EDMinterface function edmiGetQuery

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