Inline DB2/SQL ?

Recently i attended interview in mnc company f/g r some questions am unable to answer.
1. What is Inline SQL ?
2. Copy particular records from multiple datasets to one o/p dataset.
3. How to send data from JCL to COBOL/DB2 ? am not asking jcl to normal cobol it is db2/cobol.
And rest of the questions i answered and they asked me questions from C, C++, OOPS, SDLC too.
Please someone answer above 3 questions.
1. What is Inline SQL ?
2. Copy particular records from multiple datasets to one o/p dataset.
3. How to send data from JCL to COBOL/DB2 ? am not asking jcl to normal cobol it is db2/cobol.
And rest of the questions i answered and they asked me questions from C, C++, OOPS, SDLC too.
Please someone answer above 3 questions.