unique-constraint – CodeRavo

Efficiently Insert Rows into PostgreSQL Only if They Do Not Already Exist

Introduction In database management, ensuring data integrity while inserting new records is crucial. A common scenario … Efficiently Insert Rows into PostgreSQL Only if They Do Not Already ExistRead more

conditional-insert, insert, on-conflict, PostgreSQL, psycopg2, Python, unique-constraint, upsert

Implementing Multi-Column Unique Constraints in MySQL

Introduction In database management, ensuring data integrity is crucial. One way to maintain this integrity is … Implementing Multi-Column Unique Constraints in MySQLRead more

composite-key, data integrity, multi-column-index, MySQL, null-handling, unique-constraint

Efficient "Insert If Not Exists" Strategies in MySQL

Introduction When working with large databases, ensuring data integrity and efficiency during insert operations is crucial. … Efficient "Insert If Not Exists" Strategies in MySQLRead more

duplicate-key, insert, insert-ignore, MySQL, not-exists, on-duplicate-key-update, replace, subquery, unique-constraint