In addition, China Mobile Phone E-mail is also its high security, diversification of the terminal adapter, push and other characteristics can be selected into domestic hands-mail originator. First, the mobile email and enterprise information systems closely integrated, end to end cross-platform wireless applications: the entire communication process is based on SSL encryption, safe; through the erection of proxy gateway can support a variety of corporate mail servers and enterprise information applications, operators to provide carrier-class service and network security. Even if the customer phone is lost, the owner can send a specific message to clear the message on the phone to fully protect the users data security. Second, the mobile phone terminal adapter with a variety of mailboxes, expand the use of business people, in the realization of enterprise applications meet end-user personal use. With the gradual improvement of the business mobile email, mobile email not only to support, PUSH MAIL push mode, also supports the short, color, WAP in the form of greater use to meet different people.
DB2/400 VARCHAR, and CLOB and Oracel provided in the corresponding RAW and LONG RAW. Oracle also supports large objects: BLOB, CLOB, CLOB and NCLOB, Oracle BLOB and CLOB in the available 4GB of space, and the BLOB and CLOB DB2/400 can store 2GB of data; DB2/400 and Oracle in the DBCLOB corresponds to the NCLOB 2GB. Oracle BFILE data type is used in the management of binary data outside the database, the database table will point to the BFILE stored outside the database files, DB2/400 data also provide a similar type of DATALINK correspond. Oracle ROWIND virtual column for a column in the table uniquely marked, DB2/400 data also have this type of ROWID, which with the Oracle ROWID function in similar. ROWID can be stored in DB2/400 40 byte of data is used to uniquely identifies each row in the table, it does not ccsid property, the information is not on the datafile, block or row of information.