TYPO3 Exception 1472074485 

Unknown column 'tx_myext_domain_model_myfield.' in 'order clause' 

There's no 'foreign_sorting' set in TCA. For me it happened with an Inline type.

Table 'my_db.tx_someotherextension_domain_model_myfield' doesn't exist 

When you have mapped a relation to an external model in your extension, and did not map it in EXT:extension/Configuration/Extbase/Persistence/Classes.php.

Table 'my_db.tx_mytablename' doesn't exist 

A table name which does not correspond the Extbase table naming scheme, and did not define define the tableName name in EXT:my_extension/Configuration/Extbase/Persistence/Classes.php.

Table 'my_db.tx_myext_persistence_objectstorage' doesn't exist 

Solution 

Go to Admin tools -> Maintenance -> Database compare and bring the database schema up to date.