Hi, all,

my SQLite database has two tables Katalog and ZKatalog with the same structure. One of the columns  is called DDatum. What's the most efficient way to


(1) Select records, which are only in Katalog, but not in ZKatalog?
(2) Select records, which are in Katalog and in ZKatalog?
(3) Select records, which are with same column values except DDatum in Katalog and in ZKatalog?
(4) Select records from Katalog and ZKatalog with same DDatum content?

Thanx --  Joe
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