getcurconnjdbc20.out

derby database source code.good for you.

ij> -- test getCurConnJdbc20
----- this test will get run under jdk12 only. If run under jdk11x, will get an exception like
----- following for call to newToJdbc20Method
----- ERROR 38000: The exception 'java.lang.NoSuchMethodError: java.sql.Connection: method 
----- createStatement(II)Ljava/sql/Statement; not found' was thrown while evaluating an expression.
----- method alias and table used later
create procedure newToJdbc20Method() PARAMETER STYLE JAVA LANGUAGE JAVA EXTERNAL NAME 'org.apache.derbyTesting.functionTests.util.Jdbc20Test.newToJdbc20Method';
0 rows inserted/updated/deleted
ij> create table T (a int NOT NULL primary key);
0 rows inserted/updated/deleted
ij> insert into T values (1);
1 row inserted/updated/deleted
ij> -- now lets try a variety of errors
call newToJdbc20Method();
Statement executed.
ij> ------------------------------------------------------------
----- drop the table
drop table T;
0 rows inserted/updated/deleted
ij> drop procedure newToJdbc20Method;
0 rows inserted/updated/deleted
ij>