If the person entering the data expected the *.csv data to be a non-null number, (s)he should be alerted to the data error in the *.csv file rather than entering an erroneous numeric value into the SQLite table. The default, I think, would be for SQLite to abort the load, just as if I tried to copy a null into a non-null column within SQLite. I think that it would be better to "offer" the null value to SQLite and let the SQLite program decide what to do.
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Thanks for considering the above, and many thanks for your work with SQLite and import of *.csv files.Īs I thought about your message below, it occurred to me to suggest that entering a missing value as a 0 into a non-null numeric affinity SQLite column is probably still an error. It would be acceptable, but I suspect unnecessary, to give the user the choice in an extra option between the current behavior and my suggested behavior. It would be a really nice feature for the *.csv import function to check the type affinity of a column, and where the column has numeric affinity, enter null strings as numeric nulls rather than as text empty strings. csv file numeric field were entered as null strings rather than as NULL or missing values. I suspect that I am not alone in not realizing before that missing values in a.
#S value not numberic in surpac update#
UPDATE core2013 set dx15 = NULL where dx15 = '' īut this is really cumbersome where there are hundreds of such columns in multiple tables.
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I know that I can repair these files with, e.g.: Has there been any progress on this issue? I have a large number of SQLite databases that I have entered from *.csv files, using your *.csv import method, each with multiple columns with predefined numeric affinity, but peppered with "text" typed null string entries that were intended to be entered as NULL, and that when exported to R are coerced incorrectly to a numeric 0. In case you need the CSV file, here it is: And when the user does not check the box, the textfield is disabled and the null value becomes NULL when imported.īrowse table data using another app after import from CSV using SQLitebrowser:īrowse table data using SQLitebrowser after import using other SQL app:
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I don't know if this is a feature or not, but maybe you can add an option when trying to import you give a checkbox and textfield for the NULL value, so when the user check the box but leaves the textfield empty the NULL value becomes empty string or the value of the textfield if any. I have already checked when I import using SQLitebrowser and open with another app it becomes empty string for the NULL value. Oh, and the preview when importing a CSV file (after choosing the CSV file) btw, also display an empty string rather than NULL value. I tried to import using other SQLite app the null value (etc,10,10,) become NULL instead of empty string. It is as the title suggests, null value is become empty string when I tried to import from CSV file which has a null value (etc,10,10,).