23. What is an Expression? How to Use It Performing Magento Import?
Frequently in the process of Magento import, you face a dilemma: the procedure cannot be completed, because there are no all the necessary fields listed in the file, your data structure placement does not correspond to your import tool requirements or you simply forgot to add some values and made up your mind only in the middle of Magento product update process. What to do? Should you return, do the changes in your file and start all over again? No way, it is not acceptable to waste your time this way.
What exactly is an expression?
Where to create/apply expression rule in the process of import?
There is also an “Auto Complete Window” button, that contains useful prompts that might help you to create the correct expression. There you will see the set of available in the .csv file fields, and the list of commands, functions, and the macroses for formula creation.
If you need help with functions or more info on how to use them, you can use the “SQL help” button.