Results for “remove row”
Small, practical examples. Search by task or narrow things down below.
Create a table and insert its first row
SQLite: Define column types and a primary key, then insert one row using an explicit column list.
SQLite✓ Tested
Create independent rows in a matrix
JavaScript: Use a mapping function to create each row instead of sharing one array with fill.
JavaScript✓ Tested
Create independent rows in a matrix
TypeScript: Use a mapping function to create each row instead of sharing one array with fill.
TypeScript✓ 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 rows selected by a related table
SQL: A correlated EXISTS limits the delete to explicitly listed records.
SQL✓ Tested
Delete rows selected by a related table
SQL Server: A correlated EXISTS limits the delete to explicitly listed records.
SQL Server✓ Tested
Delete rows selected by a related table
Postgres: A correlated EXISTS limits the delete to explicitly listed records.
Postgres✓ Tested
Delete rows selected by a related table
SQLite: A correlated EXISTS limits the delete to explicitly listed records.
SQLite✓ Tested
Distinguish row count from non-null value count
SQL: COUNT(*) includes every row while COUNT(column) skips NULL values.
SQL✓ Tested