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I have an abstruse sqlldr problem that's bothering me. My control file looks something like this: load data infile 'txgen.dat' into table TRANSACTION_NEW fields terminated by ',' optionally enclosed by '' TRAILING NULLCOLS ( A, B, C, D, ID 'ID_SEQ. Telecharger Dreamweaver 8 Gratuit Avec Crack Pour Windows 8 more. NEXTVAL' ) Data is something like this: a,b,c, a,b,,d a,b,, a,b,c,d If I don't put the TRAILING NULLCOLS in, I get the 'column not found before end of logical record' error. But although some of the columns are null, the commas are all there, so I don't see a reason for sqlldr to misinterpret the input file, and not get to the end where it generates the ID from the database sequence.

This syntax has worked before with no null columns - why does a null column cause sqlldr to not reach the generated column? I've got it working, I just want to understand WHY!?! You have defined 5 fields in your control file. Your fields are terminated by a comma, so you need 5 commas in each record for the 5 fields unless TRAILING NULLCOLS is specified, even though you are loading the ID field with a sequence value via the SQL String. RE: Comment by OP That's not my experience with a brief test. With the following control file: load data infile * into table T_new fields terminated by ',' optionally enclosed by '' ( A, B, C, D, ID 'ID_SEQ.NEXTVAL' ) BEGINDATA 1,1,,, 2,2,2,, 3,3,3,3, 4,4,4,4,,,,,,, Produced the following output: Table T_NEW, loaded from every logical record. Insert option in effect for this table: INSERT Column Name Position Len Term Encl Datatype ------------------------------ ---------- ----- ---- ---- --------------------- A FIRST *, O(') CHARACTER B NEXT *, O(') CHARACTER C NEXT *, O(') CHARACTER D NEXT *, O(') CHARACTER ID NEXT *, O(') CHARACTER SQL string for column: 'ID_SEQ.NEXTVAL' Record 1: Rejected - Error on table T_NEW, column ID.

Column not found before end of logical record (use TRAILING NULLCOLS) Record 2: Rejected - Error on table T_NEW, column ID. Column not found before end of logical record (use TRAILING NULLCOLS) Record 3: Rejected - Error on table T_NEW, column ID. Column not found before end of logical record (use TRAILING NULLCOLS) Record 5: Discarded - all columns null. Table T_NEW: 1 Row successfully loaded. 3 Rows not loaded due to data errors. 0 Rows not loaded because all WHEN clauses were failed.

1 Row not loaded because all fields were null. Note that the only row that loaded correctly had 5 commas. Even the 3rd row, with all data values present except ID, the data does not load. Unless I'm missing something.

I'm using 10gR2.