![]() ![]() For the moz_places table, there were a number of entries, including sites that had been bookmarked but also an entry for the URL that had shown up in the suggestions list. ![]() User-friendly interface for data science. With the command-line sqlite3 software, I examined the contents of the places.sqlite file. SQL OnLine - Next gen SQL Editor: SQLite, MariaDB / MySQL, PostgreSQL, MS SQL Server. In the case of the Tor Browser Bundle under Xubuntu Linux, the location of this file is tor-browser_en-US/Browser/TorBrowser/Data/Browser/fault/places.sqlite, assuming the default root directory tor-browser_en-US. In addition, from what I remember, the inclusion of the URL in the suggestions list happened when text was entered into the address bar immediately after Tor Browser had been launched.įrom information elsewhere, there is an SQLite database in a file, places.sqlite, that is used by Tor Browser (and Mozilla Firefox) for storing information relating to bookmarked sites and browsing history. This URL was not among the pages that I had bookmarked in the browser. In addition to pages that had been bookmarked, however, the list of suggestions also included the URL. When entering text in the address bar, Tor Browser displayed a list of suggestions underneath the address bar. I do not remember installing any additional extensions into Tor Browser. Unlike most other Relational Database Management System (RDBMS), SQLite database does not require any database engine or server setups, hence enabling portability and easy transferability. The software configuration in question was a recent version of the Tor Browser Bundle (most likely 7.0.2) 32-bit running under Xubuntu Linux 16.04. At the same time, from what I understand, Tor Browser is preconfigured to not save any browsing history to the disk, and I do not remember reconfiguring Tor Browser with the purpose of changing this aspect. This SQLite tutorial teaches you everything you need to know to start using SQLite effectively. ![]() This on-disk database is used to store such information as bookmarks, browsing history, favicons, and annotations, among other things. In summary, from what I can tell, an instance of the URL (which may well have been embedded in a different page) ended up in Tor Browser's places.sqlite database as if it was saved as part of the user's browsing history. ![]() Funny note: districts 23 Mykolaiv, 24 Kherson and 25 Odessa have a negative area, this has probably something to do with polygon orientation in the source data.The situation that I am describing may or may not be due to an error in the Tor Browser software ("defect" may not be the best category), but it seems somewhat anomalous and may be worth noting and may be of interest to others. ‘select, st_area(geometry) as area from ukraine order by area desc ’ ‘select st_astext(st_transform(geometry, 3857)) from ukraine’Ĭonverts the coordinates to EPSG:3857 Spherical Mercator (popular in mapping tools) It does not require familiarity with SQL commands. ‘select spatialite_version() ’ –> returns ‘5.0.1’ SQLite Database Browser is not a visual shell for the sqlite command line tool. Now the result of the ST_AsText function is better: and load file ‘mod_spatialite.dll’ from the QGIS bin directory. To solve this use Tools –> Load Extension…. If we call a spatial function on the geometry column (for example ‘select st_asText(geometry) from ukraine’) there will be an error ‘no such function’ because the tool doesn’t know about spatial functions: Now start DB Browser for SQLite, load the ‘Ukraine.sqlite’ database and in the ‘Execute SQL’ tab do a count on table Ukraine, 25 should be the result: In QGIS we can load the data using the SpatiaLite option in the browser: The PK (Primary Key) checkbox is automatically selected for you click OK. In the Edit Table Definition dialog, select the AI (auto-incrementing) checkbox in the id field. Using tool ogr2ogr we convert the GeoJSON file to SQLite: $ ogr2ogr -f sqlite -dsco spatialite=yes ukraine.sqlite Ukraine.json Click the Database Structure tab, select the name of the table, and then click Modify Table in the toolbar. Prerequisite: Install a recent version of QGIS ( ) and add the bin directory to the system path (something like C:\Program Files\QGIS 3.22.3\bin).įirst download some data, we’ll use districts polygons in GeoJSON format from Ukraine, source Well, you can use SQLite for the Web-Browsers using this sql.js which says sql.js is a port of SQLite to JavaScript, by compiling the SQLite C code with Emscripten. Warning: This blog is written for Windows, it might work on other platforms but this is not tested. In this blog we’ll investigate how to use Spatial functions from SpatiaLite in DB Browser for SQLite ( ). The tool has an extension mechanism to add more functionality. DB Browser for SQLite is a popular open source tool to create, design, and edit database files. ![]()
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