Add days to a date.

Use DATEADD for date arithmetic.

T-SQL snippet.sql
SELECT CONVERT(CHAR(10), DATEADD(day, 7, CAST('20260115' AS DATE)), 23);

Expected output EXAMPLE

2026-01-22

Details

Requires SQL Server 2022 or later. Run in an empty scratch database in SSMS or sqlcmd. Result rows below use | between columns, without headers; client display formatting may differ. The unseparated YYYYMMDD input is unambiguous; style 23 formats YYYY-MM-DD. Use a fresh scratch database; the example creates any tables it needs.

✓ Verified

Tested on Ubuntu 24.04.5 LTS · · SQL Server 16.0.4295.3 · libc6 2.39-0ubuntu8.9; psycopg 3.2.10; pymssql 2.3.8

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. Database services use a private internal Docker network without published ports. Fresh scratch schema/database for each case; test database administrator credentials are confined to these disposable services. 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
6689222bd27b1d4bf811b5b1f9ab8ff4c8f788bdbb7e37fceb69b0e3cb2dd66b
Dependencies
libc6 2.39-0ubuntu8.9; psycopg 3.2.10; pymssql 2.3.8

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

2026-01-22

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