![]() Looking at the source, there are conditional compilation flags in the SQLite openDatabase function that automatically initialize popular extensions like FTS and RTREE. It turns out this isn't hard, but in order for the JSON extension to be usable, it needs to be initialized when a connection is open. The final step (and for me, the trickiest) is to build pysqlite against the new static library. If not, cruise the console output and hopefully the error is easy to spot. There should now be a file named lib/libsqlite3.a in the SQLite3 source checkout. configure -prefix=$JQLITE -enable-static -disable-shared make sqlite3.c cat ext/misc/json1.c > sqlite3.c make lib_install I put mine in ~/bin/jqlite for fun, but you can change the path to whatever you like.Įxport CFLAGS="-fPIC -DSQLITE_ENABLE_FTS3=1 \ -DSQLITE_ENABLE_COLUMN_METADATA=1 \ -DSQLITE_ENABLE_UNLOCK_NOTIFY \ -DSQLITE_SECURE_DELETE \ -DSQLITE_ENABLE_LOAD_EXTENSION=1". To get started, we need a nice clean home for the new libraries. There were a couple steps involved, so I'll try and break it down into sub-steps. SQLite also requires tcl and awk to create the source amalgamation, so before starting in, you'll need to install: We'll be grabbing the latest SQLite source code - to do this you can use fossil, the source-code management system used by SQLite, or alternatively you can pull down a compressed image. ![]() I've done this now on arch and ubuntu, but I'm not sure about fapple or windoze. In this post, we'll build SQLite with the new JSON extension, then build pysqlite against the json-ready SQLite. Hipp posted to the sqlite-users mailing list requesting feedback for a draft of the json1 module APIs, so I thought the Python community might be able to help out. The post includes instructions for compiling pysqlite and apsw, as well as example code showing how to use these new extensions in your Python projects.Ī couple weeks ago, word started getting around trendy programming circles about a new file that had appeared in the SQLite fossil repo named json1.c. I've written a new version of this post with updated instructions for compiling SQLite with JSON1 and FTS5. Line 41: We need to close the database connection, so we use the close() method.With the release of SQLite 3.9.0, the instructions for compiling SQLite and building pysqlite have been greatly simplified. We must pass in the keys as well as the values so that the data will be displayed properly. Line 26: Now we'll fetch all the data we have stored in the database and return it in a JSON format using the json_group_array() and the json_object() methods. Line 23: We must commit the changes to save them in the database using the commit() method. ![]() Line 15: We add some values to the table with the INSERT keyword. Line 12: We execute the query to create a table called Biodata with fields id, name, age, and sex. Line 8: We create a cursor object used to traverse and manipulate the result of a database query. Line 5: We connect to the database with the name mydemo.db using the connect() method. Line 2: We also import the sqlite3 module which provides a powerful and easy-to-use interface for working with SQLite databases in Python. ![]()
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