How to Concatenate two columns values with semicolon's

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C

Objective-C

For e.g.

I have the column name called x. and x has values like this

a;b;c;d;e

i have another column name called y. and y has values like this

f;g;h;i;j

Both column are in the same table and

i want to concatenate the both column values like this and put them in the array list.
a f

b g

c h

d i

e j

can anyone please help me out? Thanks in advance.