Results for “at”
Small, practical examples. Search by task or narrow things down below.
Make a pair of columns unique together
SQL: A composite primary key permits repeated individual values while forbidding a duplicate combination.
SQL✓ Tested
Make a pair of columns unique together
SQL Server: A composite primary key permits repeated individual values while forbidding a duplicate combination.
SQL Server✓ Tested
Make a pair of columns unique together
Postgres: A composite primary key permits repeated individual values while forbidding a duplicate combination.
Postgres✓ Tested
Make a pair of columns unique together
SQLite: A composite primary key permits repeated individual values while forbidding a duplicate combination.
SQLite✓ Tested
Make a script executable by its owner
Linux Commands: Add the owner execute bit without replacing all permission bits.
Linux Commands✓ Tested
Make a second copy of a practice file
Linux Commands: Make a second copy of a practice file using GNU/Linux commands in an empty practice directory.
Linux Commands✓ Tested
Make an unavailable select option unselectable
HTML: A disabled option remains visible but cannot be selected through normal keyboard navigation.
HTML✓ Tested
Map a command with switch
Map a command with switch using a complete Go program with explicit sample inputs.
Go✓ Tested
Map an input range to an output range
Scale an integer reading to a different interval.
map✓ Tested
Mark a self-contained article
HTML: Article identifies a standalone composition that can be read independently.
HTML✓ Tested
Measure a short delay with micros
Measure elapsed microseconds around a short operation.
micros✓ Tested
Measure a small seekable binary file
C: Seek to the end and inspect ftell, checking both operations for errors.
C✓ Tested