问题
I use sqlldr to import CSV files and I have some problem with date multiple formats.
Dates inside the CSV file are DD/MM/YYYY and if there is no date it is a single dot
CSV file
DATE_COLUMN;OTHER_COLUMN
01/01/2013;other column content 1
.;other column content 2
My .ctl file for sqlldr
LOAD DATA
INFILE '/path/to/my/file.csv'
REPLACE INTO TABLE table_to_fill
FIELDS TERMINATED BY ';'
(
COLUMNDATE "decode(:COLUMNDATE ,NULL,'.', to_date(:COLUMNDATE ,'DD/MM/YYYY'))",
OTHER_COLUMN
)
The import is working when I use :
decode(:COLUMNDATE ,NULL,'.'))
or
to_date(:COLUMNDATE ,'DD/MM/YYYY')
But not when I try to combine both...
Here is the error log :
Record 1: Rejected - Error on table table_to_fill, column COLUMNDATE.
ORA-01858: a non-numeric character was found where a numeric was expected
How can I combine these, please ?
I thought that the last parameter of the "decode" function was for the default value of the column, am I wrong ?
回答1:
SQL Loader's "regular" syntax should be enough here. Try this:
LOAD DATA
INFILE '/path/to/my/file.csv'
REPLACE INTO TABLE table_to_fill
FIELDS TERMINATED BY ';'
(
COLUMNDATE DATE(7) "DD/MM/YYYY" NULLIF COLUMNDATE = "."
OTHER_COLUMN
)
来源：https://stackoverflow.com/questions/18130689/how-to-use-decode-in-sql-loader