Pure Java Type 4 Cobol JDBC(1.2, 2.0, 3.0, 4.0, 4.1) driver packages for Cobol data, which includes FB (fixed block) file, VB (variable block) file, FB sequential file, VB sequential file, FB relative file, IBM mainframe line sequential file, PC line sequential file, OpenCobol VB file, Fujitsu NetCOBOL VB file, MicroFocus VB sequential file, MicroFocus VB relative file, AcuCobol Vision data file, and so on. It supports Cobol Copybook file, Cobol source program(free format, fixed format, Fujitsu-Siemens style, Tandem Non-stop style), ASCII encoding, EBCDIC encoding, transaction, embedded mode, client/server mode, remote access mode, memory-only database, compressed database, SAMBA database, and url database(http, https, ftp). It supports embedded mode and remote access mode. It supports ANSI SQL 92 standard, more than 230 sql functions, XOPEN SQLState, RMI, Jini, JNDI, and serialization. It supports { UNION | INTERSECT | EXCEPT | MINUS } [ ALL ] query , INNER JOIN, FULL JOIN, LEFT JOIN, RIGHT JOIN, NATURAL JOIN,CROSS JOIN, self join, GROUP_CONCAT, GROUPING, WITH ROLLUP, WITH CUBE, multiple-row VALUES table, PIVOT table, UNPIVOT table, and subquery which includes single-row subquery, multirow subquery, multiple-column subquery, inline views, and correlated subquery. The drivers are completely written in Java and can be deployed on any platform with Java VM, which includes Microsoft Windows, Novell Netware, Apple Mac OS, Solaris, OS2, UNIX, and LINUX. It supports Personal Java, JDK1.0.X, JDK1.1.X, JDK1.2.X, JDK1.3.X, JDK1.4.X, JDK1.5.X, JDK1.6.X, and JDK1.7.X. For remote access mode, it provides a GUI database server manager with remote control capability, which can run as Windows service, Unix/Linux daemon, or standalone application. It supports seamlessly files and directories in ZIP, BZ2, and TAR files((.ZIP, .JAR, .GZ, .TAR, .BZ2, .TGZ, .TAR.GZ, .TAR.BZ2) in jdbc url and sql.