Name an intermediate query with a CTE.
Make a filtered result reusable within one statement.
CREATE TABLE products (id INTEGER PRIMARY KEY, name VARCHAR(40), category VARCHAR(20), price INTEGER);
INSERT INTO products VALUES (1, 'Pen', 'office', 3), (2, 'Book', 'office', 12), (3, 'Mug', 'kitchen', 8);
WITH affordable AS (SELECT name, price FROM products WHERE price < 10)
SELECT name FROM affordable ORDER BY price;Expected output EXAMPLE
Pen Mug
Details
Run in a scratch SQL database. These portable examples are executed on both PostgreSQL and SQLite. Result rows below use | between columns, without headers; client display formatting may differ. A common table expression exists only for the statement immediately following it. The CREATE and INSERT statements supply the complete example data; use a fresh database or remove those setup statements when adapting the query.
Tested on Ubuntu 24.04.5 LTS · · SQLite 3.45.1; PostgreSQL 18.6 (Debian 18.6-1.pgdg13+2) · sqlite3 3.45.1-1ubuntu2.8; 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
835d7148f96bf8cf6a80721f8ec28b4615bf62000faa04dcb00cabdc2adbc37e- Dependencies
- sqlite3 3.45.1-1ubuntu2.8; 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
Pen Mug
Exit code: 0. Standard error: empty. Validation: Exact stdout comparison. System-dependent values above are one recorded run.