Results for “create folder”
Small, practical examples. Search by task or narrow things down below.
Count distinct values within a result
Postgres: COUNT DISTINCT counts distinct non-null values.
Postgres✓ Tested
Count down with a while loop
Bash Scripts: Count down with a while loop with a small standalone Bash program.
Bash Scripts✓ Tested
Count matching lines
Linux Commands: Use grep -c to count matching lines rather than individual occurrences.
Linux Commands✓ Tested
Count newline-terminated records
Linux Commands: Count newline-terminated records using GNU/Linux commands in an empty practice directory.
Linux Commands✓ Tested
Count repeated lines after sorting
Linux Commands: Group identical lines before uniq -c, then normalize its leading padding.
Linux Commands✓ Tested
Count repeated words
Count repeated words using a complete Go program with explicit sample inputs.
Go✓ Tested
Count rows per category
Aggregate rows sharing the same category.
GROUP BY✓ Tested
Count rows satisfying separate conditions
SQL: SUM over CASE expressions calculates several conditional counts in one scan.
SQL✓ Tested
Count rows satisfying separate conditions
SQL Server: SUM over CASE expressions calculates several conditional counts in one scan.
SQL Server✓ Tested
Count rows satisfying separate conditions
Postgres: SUM over CASE expressions calculates several conditional counts in one scan.
Postgres✓ Tested
Count the elements in an array
Bash Scripts: The array length form counts assigned elements, not characters in the first value.
Bash Scripts✓ Tested
Count the rows in a table
SQLite: COUNT(*) includes every row, including rows with NULL columns.
SQLite✓ Tested