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J

join(String, Table, String) - Method in class PrologDB.Table
this is a table constructor that takes the equijoin of 'this' table on the leftJoinCol with rightTable on the rightJoinCol.
join(String, Table, String) - Method in class PrologDB.Tuple
this is a table constructor that takes the join of one Lefttable tuple on the leftJoinCol with rightTable on the rightJoinCol.
joinExists(String, Table, String) - Method in class PrologDB.Tuple
returns true if there exists a tuple that satisfies "this".thisJoinkey == rightTable.rightJoinCol; returns false otherwise
joinFirst(String, Table, String) - Method in class PrologDB.Tuple
returns the first tuple of rightTable that joins with 'this', where "this".thisJoinkey == rightTable.rightJoinCol; returns null otherwise; technically this is a rightSemiJoinFirst operation
joinFirstEH(String, Table, String) - Method in class PrologDB.Tuple
same as joinFirst, except an Error is thrown if no tuple of otherTable is found.
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