An example of a CRUD application would be something that tracks orders in a database. All 4 actions are going to be necessary to track those orders. CRUD: The basic database operations.
I made a google spreadsheet which pulls data from two other workbooks using "importRange" and QUERY function. You can use either one if you just want to pull a few columns from another spreadsheet. QUERY provides more flexibility by allowing you to use a SQL statement. Here is an example of a query which pulls 2 columns from another workbook and filters out the blank rows in column 41:
=QUERY(importRange("yourSpreadsheetKeyHere", "Donations!A3:BB200000"), "select Col41, Col2 WHERE Col41!='' ", 1)
One of the biggest pains during the entire process was google spreadsheet's vlookup. I learned the vlookup function only searches for a value in the first column in the Array. It's also helpful if you format the results of your vlookup as "Plain Text" under the numbers format drop-down. Of course, something formatted as a number won't match something formatted as plain text.
You could use this technique if you have a list of customer id's with names, and a separate spreadsheet with more customer information. With this, you could combine that information.
Update: They sent a letter saying they made a new business portal site. www.businessportal.greenmountain.com My first visit gives me an “Our site is currently down as we upgrade our systems.” error message.
It says not to use == to check for "none-ness". It's better to use:
if variable is none: <your code>
Why? "And the reason for choosing egg is None over egg == None: The latter can be overloaded, and is likely to break when comparing valid object with None (depends on how it's implemented, but you don't expect everyone to take comparisions with None into account, do you?), while is always works the same."
