What is a .DB3-WAL file?
A .db3-wal file is the write-ahead log for a SQLite database stored as .db3, holding committed changes waiting to be folded into the main file. Same format as .sqlite-wal.
- Did you know
- The -wal sidecar lets readers keep using the old database while a writer appends new changes, which is what makes WAL mode fast.
- Write-ahead logging lets SQLite readers and a writer work at once, since new changes go to the .wal first instead of locking the main file.
- A checkpoint periodically folds the .wal back into the database, after which the log can be reset.
- What Analyser reads
- Open SQLite databases (.sqlite/.db/.sqlite3) and read their full schema in-browser - every table with its columns and row counts, views, indexes, triggers, the CREATE-statement DDL, and a sample of the largest table. Reads the WAL-mode sidecars too: the Write-Ahead Log (-wal) - page size, salts, frame and committed-transaction counts, and the pages it changed - and the shared-memory index (-shm) - valid frame count, database size and checkpoint progress. (.sql dumps are listed under Developer / data.) Microsoft Access (MDB, ACCDB) now opens in a full table viewer - see Access database above.
- Depth of analysis
- .DB3-WAL is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
- Open a .DB3-WAL file
- Drag a .DB3-WAL file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.
- Related formats
- .SQLite · .SQLite3 · .DB · .DB3 · .SQLite-WAL · .SQLite-SHM · .DB-WAL · .DB-SHM · .DB3-SHM · .SQLite3-WAL · .SQLite3-SHM. See all supported file types.