Sqlite Batch File Insert

  1. How To Create A Batch File
  2. Batch File
  3. Download Batch File
  4. Sqlite Batch File Inserts
  5. Batch File Commands

Make your SQLite bulk inserts very fast in C#.NET. In SQLite if you insert one record at a time then they are wrapped in individual transactions. In order to for your bulk inserts to perform very fast then you need to wrap them all in a single transaction. See SQLite FAQ. I was able to insert 1 million rows in about 4 seconds. Re: insert image into db - windows batch. > An image (assuming you mean a file like a.jpeg or.png file) is just a long run of bytes. You can store a long run of bytes in a SQLite database as data of type 'BLOB'. This isn't a string, or a number, or a date, it's just a long run of bytes which is stored exactly as supplied with no interpretation.

I'd like to have a one line batch file: sqlite3 test 'insert into testable values ('value1','value2')' have you tried something like: echo insert into testable values ('value1', 'value2'); sqlite3 test note ';' at end of statement and ' ' pipe char in command line. Run sqlite from a batch file. Hi All, I am trying to execute MS DOS batch file from C# code using system.diagnostics to run a sequence of sqlite3 commands to output query results in a '.csv'. Optimizing batch inserts, SQLite. I am playing with different buffer sizes to be inserted into the local SQLite DB and have found that it takes nearly 8 minutes to inserts 10,000,000 rows of data, when buffer size is 10,000. In other words, it takes 1,000 writes to store everything. 8 minutes to store 10,000,000 seems a bit too long. You could even use placeholders in the batch file for the name of the database file and the SQL command file. BTW the wxSQLite3 1.8.3 release contains a SQLite3 shell (named sqlite3shell.exe) for Windows supporting encryption. Squeezing Performance from SQLite: Insertions. Jason Feinstein Blocked Unblock Follow Following. Consider re-using SQLiteStatement batch-insert objects directly to do some more middleman.

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Is it possible to write scripts that contain SQLite dot commands ( vis. .read file.sql; .separator ,; .import file.csv; )?

How To Create A Batch File

I'm building and repeatedly rebuilding an SQLite database and need to type in roughly twenty four dot command statements every time I rebuild the database. It would be really nice if I could put those commands in a script and have SQLite read them.

Is there a way to put dot commands ( not SQL statements ) into a script and have SQLite run them?

I'm on Mac OS X using bash.

StudentsTeaStudentsTea

2 Answers

I searched the Internet for an answer last night and found nothing. Of course, today after posting this question I try again--and find an adequate response almost immediately.

The gist of it? Put your commands in a text file and direct it to SQLite using the input file descriptor, or just script everything in a bash script.

First Method:

sqlite3 database.db < commands.txt

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Second Method:

And then on the command line:

StudentsTeaStudentsTea

Batch File

As an alternative, which I consider simpler, you can just use the .read command. From the command line of your OS (terminal in Mac OS X), type:

It will start sqlite3, use the mentioned database, perform all of the commands in script_full_of_dot_commands, and leave.

For instance, let's assume you have the following files:

script_full_of_dot_commands: A file with both .commandsand SQL commands:

file.sql: A file with just SQL commands.

file.csv: a data file to fill a table

The result of performing

is

Check also: Running a Sqlite3 Script from Command Line from StackOverflow.

joanolo

Download Batch File

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A simple actions to compare SQLite and LiteDB v3

Results:

5.000 recordsLiteDB #1LiteDB #2LiteDB #3SQLite #1SQLite #2SQLite #3
Insert4.999 ms5.690 ms4.839 ms46.379 ms49.296 ms4.107 ms
Bulk236 ms280 ms219 ms122 ms122 ms106 ms
Update3.674 ms3.784 ms3.242 ms47.470 ms48.490 ms4.101 ms
CreateIndex176 ms174 ms176 ms13 ms36 ms8 ms
Query204 ms208 ms93 ms457 ms463 ms468 ms
Delete157 ms207 ms140 ms11 ms13 ms3 ms
Drop17 ms56 ms14 ms11 ms25 ms3 ms
FileLength7.580 kb7.576 kb7.572 kb3.824 kb3.856 kb3.824 kb

Low is better

LiteDB

  • #1 Default
  • #2 Encrypted
  • #3 Exclusive mode and no journal

Sqlite Batch File Inserts

SQLite

  • #1 Default
  • #2 Encrypted
  • #3 No journal

Batch File Commands

Tested on MacBook Pro 2012 i5, Win10, 8Gb RAM, SSD

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