I need to code a small/simple database application using C.
My idea is to use a B-Tree to store the items of each table. The problem I am facing is that tables need to be flexible to hold an unknown number of columns, and each column can be either a STRING or an INT. For example, with this command:
CREATE TABLE student (STRING name, INT age)
I would need to create a table that holds a string and an integer. With this command instead:
CREATE TABLE grade (INT grade1, INT grade2, INT grade3)
I would need to create a table that holds three integers.
How can achieve such flexibility?
My only idea so far is to create a struct with several unions inside it, where each union can be either a STRING or an INT. I would also need to put a lot of unions inside, to be sure to accommodate all the columns requested by the table. For example:
Is there a better way to do this?
The program below is the modification of above program in which the user is also asked to entered the range up to which multiplication table should be displayed. Example 2: Display multiplication table up to a given range. All of my C programs so far have been using the command line interface and the only other language I have experience with is PHP which doesn't support GUIs. Where do I start with graphical user interface programming in C? How do I create one?
How To Make A Table In Dev C Pdf
I wanted to create a simple table by printing lines in between my values with a header at the top and my numbers left justified. However, when I get to a ten digit number or larger, my code seems to break and my count variable goes to zero as far as I can tell, causing a bunch of space to be printed where it doesn't need to be. I was wondering what I'm doing wrong. Thank you for any help you can offer!
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Make A Table Graph
You want to print a table with the powers of 2 and you want your integers to be signed and unsigned. You're making it to complicated I think, use t to separate your output. Or use something like printf('|%d |%u |',x,y);
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