Calculate whole days between dates.

Subtract Julian day values for date-only inputs.

SQL snippet.sql
SELECT CAST(julianday('2026-01-22') - julianday('2026-01-15') AS INTEGER);

Expected output EXAMPLE

7

Details

Requires SQLite 3.40 or later. Run with sqlite3 demo.db in a scratch directory. Result rows below use | between columns, without headers; client display formatting may differ. julianday returns floating point. This cast suits these midnight date-only inputs. The verifier uses a fresh SQLite file for each example.

✓ Verified

Tested on Ubuntu 24.04.5 LTS · · SQLite 3.45.1 · sqlite3 3.45.1-1ubuntu2.8

Test inputs, results and environment

The exact published code ran in a dedicated Linux test container with prepared inputs. Snippet process uid 65534 with a read-only root filesystem and temporary working files. Networking disabled. Fixtures and output records are isolated from the application database. Testing covers this example and its stated checks, not every input, operating system, or runtime version. The Linux container shares its host's kernel; this is not a native Windows test.

Architecture / host kernel
x86_64 / 6.18.54.1-microsoft-standard-WSL2
Snippet identity / locale
uid=65534, gid=65534 (unprivileged process) / C.UTF-8
Interpreter invocation
Execute the exact SQL in a fresh database/schema; serialize result rows with | separators
Container image ID
sha256:ec91410a8f6ec3e985830b5e3a0560306d36f8c1c5ccd91a6699abe707123fa3
Code SHA-256
449800e79b9a80c04c3a5553d9f80b4ab865c0f3e1b2e34c788d2e1613079db7
Dependencies
sqlite3 3.45.1-1ubuntu2.8

Test input setup

These are the prepared inputs used by the test harness. See Details above for the prerequisites and how to run this example.

# No input files required.

Observed standard output

7

Exit code: 0. Standard error: empty. Validation: Exact stdout comparison. System-dependent values above are one recorded run.