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In database management systems (DBMS), the following types of locks are typically implemented to ensure data integrity:

• Row-level locks: lock individual records, allowing a high degree of parallelism.
• Table-level locks: lock the entire table, which is simpler but reduces parallelism.
• Page-level locks: lock a part of the table (a page), a compromise between row and table locks.
• Shared locks: allow multiple transactions to read data simultaneously but block writing.
• Exclusive locks: allow a transaction to modify data, blocking other read and write operations.

These locks are used to implement transaction isolation and prevent issues such as dirty reads, non-repeatable reads, and phantom reads, ensuring data integrity and consistency.