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Re:ISBL: Information Systems Base Language Implemented in Tcl by irq-1 on Wednesday January 31, 2024 @01:51PM (#39207737)
Skip to page 11 in the PDF for examples.

    MEMBERS(NAME, ADDRESS, BALANCE)
    ORDERS(ORDER_NO, NAME, ITEM, QUANTITY)
    SUPPLIERS(SNAME, SADDRESS, ITEM, PRICE)

    1. Print the names of members in the red:
    LIST MEMBERS : BALANCE < 0 % NAME

    i.e. select members with negative balance and
    project out their names

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