---
title: "Deprecation: #78244 - Deprecate TYPO3_DB and Prepared Statement class"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:deprecation-78244"
source: "Changelog/8.5/Deprecation-78244-DeprecateTYPO3_DBAndPreparedStatementClass.rst"
modified: "2026-09-15T10:46:36+00:00"
---

# Deprecation: #78244 - Deprecate TYPO3_DB and Prepared Statement class

See [forge#78244](https://forge.typo3.org/issues/78244)

## Description

The classes `TYPO3CMSCoreDatabaseDatabaseConnection` and  `TYPO3CMSCoreDatabasePreparedStatement` have been marked as deprecated.
This classes have been succeeded by Doctrine DBAL in TYPO3 v8, and will be removed in TYPO3 v9.

## Impact

Calling any methods of the classes above will trigger a deprecation log entry.

## Affected Installations

Any TYPO3 instances with references to `$GLOBALS['TYPO3_DB']` or use instances of the mentioned classes above.

## Migration

Use the `ConnectionPool` and the `QueryBuilder` classes to achieve future-proof and proper database abstraction for future TYPO3 versions.