The snippet library.
Small, practical examples. Search by task or narrow things down below.
Delete a known temporary file if present
Java: deleteIfExists returns whether a file was removed and still reports other I/O errors.
Java✓ Tested
Delete a map entry
Delete a map entry using a complete Go program with explicit sample inputs.
Go✓ Tested
Delete an already merged practice branch
Git: The lowercase -d option refuses to delete an unmerged branch in ordinary use.
Git✓ Tested
Delete one known scratch file
C++: filesystem::remove reports whether an item was removed and also supports empty directories.
C++✓ Tested
Delete one matching row
Remove a selected record and inspect what remains.
DELETE✓ Tested
Delete one row from a practice table
SQL: Restrict DELETE with a primary-key condition and verify the remaining row count.
SQL✓ Tested
Delete one row from a practice table
SQL Server: Restrict DELETE with a primary-key condition and verify the remaining row count.
SQL Server✓ Tested
Delete one row from a practice table
Postgres: Restrict DELETE with a primary-key condition and verify the remaining row count.
Postgres✓ Tested
Delete one row from a practice table
SQLite: Restrict DELETE with a primary-key condition and verify the remaining row count.
SQLite✓ Tested
Delete only a named scratch file
PowerShell: Use LiteralPath and avoid recursive removal for a single known file.
PowerShell✓ Tested
Delete only a selected local tag
Git: Deleting a local tag does not delete a corresponding remote tag.
Git✓ Tested
Delete rows selected by a related table
SQL: A correlated EXISTS limits the delete to explicitly listed records.
SQL✓ Tested