Results for “os”
Small, practical examples. Search by task or narrow things down below.
Remove one tag while retaining another reference
Docker / Compose: Removing a tag does not delete an image still referenced by another tag.
Docker / Compose✓ Tested
Remove surrounding spaces from text
Postgres: TRIM removes leading and trailing space characters by default.
Postgres✓ Tested
Rename a container without recreating it
Docker / Compose: rename updates the container name while preserving its identity.
Docker / Compose✓ Tested
Rename a known file
C: The standard rename function reports failure through its return value.
C✓ Tested
Repeat the first ordered value beside each row
Postgres: FIRST_VALUE reads the first value in the current window frame.
Postgres✓ Tested
Replace a literal substring
Postgres: REPLACE performs a literal replacement rather than a regular-expression substitution.
Postgres✓ Tested
Report duplicate business values and their frequency
Postgres: Group by a candidate business key and retain only groups with multiple rows.
Postgres✓ Tested
Require a locally available image
Docker / Compose: The never pull policy fails for missing images instead of attempting a download.
Docker / Compose✓ Tested
Require a value with NOT NULL
Postgres: Declare required fields at the database boundary, not only in application validation.
Postgres✓ Tested
Require two filtering conditions
Postgres: Combine category and quantity conditions with AND.
Postgres✓ Tested
Resolve a peer’s name on a user-defined network
Docker / Compose: The embedded DNS service resolves names on user-defined bridges.
Docker / Compose✓ Tested
Restart an existing container
Docker / Compose: restart starts the same container again while retaining its writable layer.
Docker / Compose✓ Tested