Is it possible to save an array as SQLite table?

[Vitaliy4us]

Is there any way to save an array as a table in SQLite database? It takes a lot of time to use a loop for this aim. 

[jchd]

Post you code, or at least a runable snippet.  There are multiple techniques to speed up things.

Also, post the complete DDL (the schema) of the DB, or at least the DLL for the relevant table.  There are many possibilities making a schema slow.

Finally, post a sample of your input table and tell how large it is in practice.

[Zedna]

As far as I know there are some import functions (.import or something like this) from TXT file,

so you may try to save your array to TXT and import it to the SQLite database.

But it's question if this would be more (speed) effective than classic loop of "insert into ..." commands.

 

EDIT:

here is documented .import functionality in sqlite3.exe shell:

https://www.sqlite.org/cli.html

.import FILE TABLE       Import data from FILE into TABLE

Edited December 19, 2019 by Zedna

[dmob]

Simple forum search:

 

[Gianni]

The script pointed here above, seems to use a simple loop along all rows of the array inserting each record for each row one record  at a time.
To improve performances of records insertion into a sqlite table, you could use instead the so called "chain insertion" see here: https://www.autoitscript.com/forum/topic/166536-manage-arrays-by-means-of-sql/?do=findComment&comment=1216694

I've used this way of insertion in this script (https://www.autoitscript.com/forum/topic/166536-manage-arrays-by-means-of-sql/?do=findComment&comment=1230981) that manages arrays by means of sqlite. Even if unluckily you can't use it as is for your goal,  cause the created table is just a temporary table in memory, you could modify it a bit so to manage a table belonging to DB on the disk. Anyway I hope it can be usefull for you as an example...

 

[jchd]

Yep, the multiple input SQL syntax INSERT into T values (...), (...), (...), ... (...) is far faster than a loop with single insert.

There are also other tracks: a virtual table, a carray, the CLI (mentionned above), json1, ...

Still insert performance highly depends on the full table schema and nature of the inserted data.  Hard to advise without more specifics.