SQL0312 error in SQLRPGLE program

[b.reddikumar]

Dcl-S SqlStmt Varchar(1000);
Dcl-S Kyear Char(4);
Dcl-S KMn Char(2);

Dcl-Pi REFRESHRPG;
LibName Char(10);
Date Char(8);
End-Pi;

Kyear = %Dec(%Subst(Date:1:4):4:0);
KMn = %Dec(%Subst(Date:5:2):2:0);

SqlStmt = 'INSERT INTO LIB_A/FileNameA '+
'SELECT * from '+ %Trim(LibName) + '/FilenameB' ;
Exec Sql
Execute Immediate :SqlStmt;


From above code I am getting error

SQL0312 - Variable SQLSTMT not defined or not usable


I don't know what is wrong here. Can any one help me ?

[b.reddikumar]

I found the issue and it is resolved. Thanks