java - CURSOR and REF CURSOR as a JDBC data type -


many rdbms support "cursor" types of sort. types useful when returned stored procedures. example in oracle:

type t_cursor_type ref cursor; create procedure p (c out t_cursor_type);

when calling procedure using jdbc, oracletypes.cursor = -10 "jdbc" type should used. type not part of standard , not going part of jdbc 4.1 in java 7.

does know whether jsr guys consider adding type standard time in future? or if other rdbms have similar "vendor-specific type"?

support ref cursors added in java 8/jdbc 4.2. use type types.ref_cursor cursor return types. can iterated through resultset interface. example:

callablestatement cstmt = conn.preparecall("{callmysproc(?)}"); cstmt.registeroutparameter(1, types.ref_cursor); cstmt.executequery(); resultset cursor = cstmt.getobject(1, resultset.class); while(cursor.next()) {     system.out.println("name = " + cursor.getstring(1)); }

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