SQL_LOCKS

Description

When enabled, the system uses SQL database locking mechanisms. This provides better integration with SQL database servers and their transaction management systems.

Type

Boolean

Values

yes/no, on/off, 1/0

Default

yes

Implementation Features

  • Native SQL lock integration

  • Transaction-aware locking

  • Deadlock detection

  • Lock escalation support

Lock Mechanisms

  • Row-level locks

  • Table-level locks

  • Transaction isolation

  • Lock timeouts

  • Lock monitoring

Database Support

  • Microsoft SQL Server

    • Full support

    • Native lock integration

    • Transaction isolation

  • PostgreSQL

    • Full support

    • MVCC integration

    • Advisory locks

  • Oracle

    • Full support

    • Row-level locking

    • Lock monitoring

Performance Considerations

  • Lock acquisition overhead

  • Transaction isolation impact

  • Deadlock handling

  • Resource utilization

  • Scalability factors

Error Handling

  • Deadlock detection and resolution

  • Lock timeout management

  • Resource exhaustion

  • Invalid lock states

  • Transaction rollback

Best Used When

  • Working with SQL databases

  • Transaction consistency required

  • Multiple concurrent users

  • Complex lock patterns needed

Migration Impact

  • May require application changes

  • Different timeout behavior

  • Lock granularity changes

  • Transaction boundary effects