SQL query to get the employee name and their manager name from the same table
You can self-join the table to get the manager’s name from his ID:
select
SQL SELECT WHERE field contains words
Rather slow, but working method to include any of words: If you need all words to be present, use this: If you want something faster, you need to look into full text search, and this is very specific for each database type.
Selecting multiple columns in a Pandas dataframe
The column names (which are strings) cannot be sliced in the manner you tried. Here you have a couple of options. If you know from context which variables you want to slice out, you can just return a view of only those columns by passing a list into the __getitem__ syntax (the []’s). Alternatively, if … Read more