""Severin Müller"" <severin.muel...@gmx.net> wrote in message news:20090327084050.24...@gmx.net > I wam writing a program where i need some data. > > I try to dynamically create a database for this. All my data are > stored in a struct, resp. several structs. What I need now, is to > know, whether it's possible to check every row I'm submitting for > existance, like: > > row1: data1 data2 data3 data4 > row2: data1 data2 data3 data4 > > If the column "data1" already exists in the table, i want to update > the row, if there is now row with "data1" i want to insert a new one. > > Is INSERT OR REPLACE something i may want to look at?
Yes. It would require that the first column (the one where "data1" goes) have a UNIQUE constraint (either explicitly, or as part of a UNIQUE index, or by virtue of being a PRIMARY KEY). Then INSERT OR REPLACE would do precisely what you want. Igor Tandetnik
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