Results for “empty”
Small, practical examples. Search by task or narrow things down below.
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
Match a known text prefix
SQL Server: A percent wildcard matches zero or more characters following the prefix.
SQL Server✓ Tested
Match a known text prefix
Postgres: A percent wildcard matches zero or more characters following the prefix.
Postgres✓ Tested
Match a text prefix
SQL Server: Use a percent wildcard after a known prefix.
SQL Server✓ Tested
Match a text prefix
Postgres: Use a percent wildcard after a known prefix.
Postgres✓ Tested
Match one value from a short list
SQL Server: Use IN for a set of allowed values.
SQL Server✓ Tested
Match one value from a short list
Postgres: Use IN for a set of allowed values.
Postgres✓ Tested
Measure the length of ordinary text
SQL Server: Use the engine’s text-length function; this ASCII example has no trailing spaces.
SQL Server✓ Tested
Measure the length of ordinary text
Postgres: Use the engine’s text-length function; this ASCII example has no trailing spaces.
Postgres✓ Tested
Normalize ASCII text to lowercase
SQL Server: LOWER is useful for display normalization; indexed case-insensitive search depends on the database collation and schema.
SQL Server✓ Tested
Normalize ASCII text to lowercase
Postgres: LOWER is useful for display normalization; indexed case-insensitive search depends on the database collation and schema.
Postgres✓ Tested
Normalize ASCII text to uppercase
SQL Server: UPPER changes character case under the database’s text rules.
SQL Server✓ Tested