# SCDELT components

| [tDB2SCDELT](https://help.qlik.com/talend/r/en-US/7.3/components/scdelt/tdb2scdelt) | Addresses Slowly Changing Dimension needs through SQL queries (server-side<br>processing mode), and logs the changes into a dedicated DB2 SCD table. |
| --- | --- |
| [tJDBCSCDELT](https://help.qlik.com/talend/r/en-US/7.3/components/scdelt/tjdbcscdelt) | Tracks data changes in a source database table using SCD (Slowly Changing Dimensions)<br>Type 1 method and/or Type 2 method and writes both the current and historical data into a<br>specified SCD dimension table. |
| [tMysqlSCDELT](https://help.qlik.com/talend/r/en-US/7.3/components/scdelt/tmysqlscdelt) | Reflects and tracks changes in a dedicated MySQL SCD table through SQL<br>queries. |
| [tOracleSCDELT](https://help.qlik.com/talend/r/en-US/7.3/components/scdelt/toraclescdelt) | Reflects and tracks changes in a dedicated Oracle SCD table through SQL<br>queries. |
| [tPostgresPlusSCDELT](https://help.qlik.com/talend/r/en-US/7.3/components/scdelt/tpostgresplusscdelt) | Addresses Slowly Changing Dimension needs through SQL queries (server-side<br>processing mode), and logs the changes into a dedicated PostgresPlus SCD table. |
| [tPostgresqlSCDELT](https://help.qlik.com/talend/r/en-US/7.3/components/scdelt/tpostgresqlscdelt) | Addresses Slowly Changing Dimension needs through SQL queries (server-side<br>processing mode), and logs the changes into a dedicated DB2 SCD table. |
| [tSybaseSCDELT](https://help.qlik.com/talend/r/en-US/7.3/components/scdelt/tsybasescdelt) | Addresses Slowly Changing Dimension needs through SQL queries (server-side<br>processing mode), and logs the changes into a dedicated Sybase SCD table. |
| [tTeradataSCDELT](https://help.qlik.com/talend/r/en-US/7.3/components/scdelt/tteradatascdelt) | Addresses Slowly Changing Dimension needs through SQL queries (server-side<br>processing mode), and logs the changes into a dedicated Teradata SCD table. |