El THEN
cláusulas en el CASE
la expresión es incorrecta:
CASE WHEN SUM(L55.TOTAL_QUANTITY - BC.FULLBOX * L55.PACKING_STYLE) = 0
THEN L55.SPAREBOX = 0
----------^
WHEN SUM(L55.TOTAL_QUANTITY - BC.FULLBOX * L55.PACKING_STYLE) != 0
THEN L55.SPAREBOX = 1
END AS SPARE_QUANTITY
Oracle no tiene un tipo de datos booleano en SELECT
consultas.
Supongo que simplemente quieres:
(CASE WHEN SUM(L55.TOTAL_QUANTITY - BC.FULLBOX * L55.PACKING_STYLE) = 0
THEN 0
WHEN SUM(L55.TOTAL_QUANTITY - BC.FULLBOX * L55.PACKING_STYLE) <> 0
THEN 1
END) AS SPARE_QUANTITY
O, si desea eliminar el CASE
:
ABS(SIGN(SUM(L55.TOTAL_QUANTITY - BC.FULLBOX * L55.PACKING_STYLE))) AS SPARE_QUANTITY