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I have a database with many columns and sometimes I need to select quite a few.
Selecting all columns would be too much data. So lets say that:
DESC table_name
gives ordered column names, for example (A,B,C,D,E,F,G,H,I,J….). Is it possible that instead:
SELECT C,D,E,F FROM table_name;
I do something like this:
SELECT [3:6] FROM table_name
I know it makes no difference in this example, but I need to select over 40 columns with long names.
No, you can’t
SELECT [3:6] FROM table_nameWhat do you think this is, some kind of modern computer language with sequences and ranges as first class data types? 🙂 :-). This is SQL.You can, as a commenter pointed out, fetch the names of the columns in the table and then programmatically generate your SQL queries. This is, of course, something a bunch of different data-access-object packages do automatically.