Question

I have a SQL select query already written in java. Now i want to select few more columns. In that case i need to write column names before the index of from keyword.
Like this
Initial query-

StringBuffer query;
query = " Select name,age,dob from employee"

New query should be like this-

query = "select name , age , dob,city from employee"

For this i tried query= query.insert(indexof(dob),"city");

But i think this will overwrite from.
My question comes down to whether insert creates enough space to insert the string or it overwrites the earlier string?
Please help.

Answer 1

instead of getting index value of dob, get index value of from

query= query.insert(original.indexOf("from"),"city ");