Parse SQL Query using java

[mani nataraj]

Hi

user create some sql query. In query contains selected coloumns,and aggregate functions etc. I need to separate selected coloumn using java.

For Ex: SELECT EMP_NAME,EMP_NO,EMP_ADDRESS,EMP_RELION,EMP_PINCODE,EMP_MOBILE,
DECODE(EMP_NAME,'TEST', EMP_NAME,EMP_NAME) from EMP;

I am trying to parse query using StringTokenizer using "," separator but not parse in properly

How to do this. Can you give me a solution for this.

[Rob Spoor]

ZQL is an SQL parser for Java.

[fred rosenberger]

I think you need to break it apart a piece at a time. First, break apart the string bases on the SQL keywords (like "select", "from", "where" "group by", "sort by", etc). Once you have everything that is between "select" and "from", you should be able to pick that apart by the commas.

[Ulf Dittmer]

I bet at least one of the standard Java parser packages (Antlr, JavaCC, SableCC) comes with a predefined grammar for SQL.