19 files declare their use of DatabaseExceptionWrapper in Drupal 8

Connection.php in core/lib/Drupal/Core/Database/Driver/mysql/Connection.php

ConnectionTest.php in core/tests/Drupal/KernelTests/Core/Database/ConnectionTest.php

D6NodeDeriver.php in core/modules/node/src/Plugin/migrate/D6NodeDeriver.php

D7NodeDeriver.php in core/modules/node/src/Plugin/migrate/D7NodeDeriver.php

D7TaxonomyTermDeriver.php in core/modules/taxonomy/src/Plugin/migrate/D7TaxonomyTermDeriver.php

DatabaseExceptionWrapperTest.php in core/tests/Drupal/KernelTests/Core/Database/DatabaseExceptionWrapperTest.php

EntityDefinitionUpdateTest.php in core/tests/Drupal/KernelTests/Core/Entity/EntityDefinitionUpdateTest.php

Error.php in core/lib/Drupal/Core/Utility/Error.php

ExtensionList.php in core/lib/Drupal/Core/Extension/ExtensionList.php

install.core.inc in core/includes/install.core.inc

API functions for installing Drupal.

InstallerRedirectTraitTest.php in core/tests/Drupal/KernelTests/Core/Installer/InstallerRedirectTraitTest.php

migrate_drupal.module in core/modules/migrate_drupal/migrate_drupal.module

Provides migration from other Drupal sites.

MigrationConfigurationTrait.php in core/modules/migrate_drupal/src/MigrationConfigurationTrait.php

SelectTest.php in core/tests/Drupal/KernelTests/Core/Database/SelectTest.php

Sql.php in core/modules/views/src/Plugin/views/query/Sql.php

Sql.php in core/modules/migrate/src/Plugin/migrate/id_map/Sql.php

SqlContentEntityStorage.php in core/lib/Drupal/Core/Entity/Sql/SqlContentEntityStorage.php

UserCreationTrait.php in core/modules/user/tests/src/Traits/UserCreationTrait.php

ViewsSqlExceptionTest.php in core/modules/views/tests/src/Kernel/Plugin/ViewsSqlExceptionTest.php