How to bulk insert a CSV file into SQLite C#

Question

I have seen similar questions (1, 2), but none of them discuss how to insert CSV files into SQLite. About the only thing I could think of doing is to use a CSVDataAdap

Answer 1

Addressing the last part of your question:

Perhaps somebody knows the much simpler thing: how to do bulk inserts of CSV files into SQLite...

Given you need to import a few thousand (or a cpl of million) records into sqlite from a CSV file,
When there is no direct support for csv data import via the select or insert commands,
And the iterative row by row reading & inserting is not performant
Then a practical alternative is to use the "sqlite?.exe" & the import command via shell execute from your c# code.

loadcsvtosqlite.cs

Process proc = new Process {
    StartInfo = new ProcessStartInfo {
        FileName = @"loadcsvtosqlite.bat",
        Arguments = @"",
        UseShellExecute = true,
        RedirectStandardOutput = false,
        CreateNoWindow = true
    }
};
proc.Start();
proc.WaitForExit();

loadcsvtosqlite.bat

sqlite3.exe "db name" < loadcsv.sql

loadcsv.sql

drop table if exists ;
create table  (field1 datatype, field2 datatype ....);
.separator ","
.import  

                                                        

              
                
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