10 files declare their use of IntegrityConstraintViolationException
- BatchBidSerialUpdateTest.php in core/
modules/ system/ tests/ src/ Functional/ Update/ BatchBidSerialUpdateTest.php  - DatabaseLockBackend.php in core/
lib/ Drupal/ Core/ Lock/ DatabaseLockBackend.php  - DriverSpecificSchemaTestBase.php in core/
tests/ Drupal/ KernelTests/ Core/ Database/ DriverSpecificSchemaTestBase.php  - EntityDefinitionUpdateTest.php in core/
tests/ Drupal/ KernelTests/ Core/ Entity/ EntityDefinitionUpdateTest.php  - ExceptionHandler.php in core/
modules/ mysql/ src/ Driver/ Database/ mysql/ ExceptionHandler.php  - form.inc in core/
includes/ form.inc  - Functions for form and batch generation and processing.
 - InsertTest.php in core/
tests/ Drupal/ KernelTests/ Core/ Database/ InsertTest.php  - InvalidDataTest.php in core/
tests/ Drupal/ KernelTests/ Core/ Database/ InvalidDataTest.php  - Merge.php in core/
lib/ Drupal/ Core/ Database/ Query/ Merge.php  - UpdateTest.php in core/
tests/ Drupal/ KernelTests/ Core/ Database/ UpdateTest.php  
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