Updated explanation

Author: dat-a-man

docs/website/docs/dlt-ecosystem/verified-sources/sql_database/advanced.md

@@ -258,9 +258,7 @@ source = sql_database(
 
 ### Selecting columns and filtering rows across multiple tables
 
-You can use `query_adapter_callback` to apply SQL filters to rows and `table_adapter_callback` to select specific columns. Use them together to filter and shape data from multiple tables.
-
-Here is an example that applies both adapters to multiple tables:
+You can use `query_adapter_callback` to apply SQL filters to rows and `table_adapter_callback` (as above) to select specific columns. You can use them together to shape data from multiple tables
 ```py
 from dlt.sources.sql_database import sql_database