请问如何在ORACLE8中增加任务？

Question

17:17:38 jlanzpa817>desc dbms_job
FUNCTION BACKGROUND_PROCESS RETURNS BOOLEAN
PROCEDURE BROKEN
自变量名称                       类型                    输入/输出默认值？
------------------------------ ----------------------- ------ --------
 JOB                            BINARY_INTEGER          IN
 BROKEN                         BOOLEAN                 IN
 NEXT_DATE                      DATE                    IN     DEFAULT
PROCEDURE CHANGE
自变量名称                       类型                    输入/输出默认值？
------------------------------ ----------------------- ------ --------
 JOB                            BINARY_INTEGER          IN
 WHAT                           VARCHAR2                IN
 NEXT_DATE                      DATE                    IN
 INTERVAL                       VARCHAR2                IN
 INSTANCE                       BINARY_INTEGER          IN     DEFAULT
 FORCE                          BOOLEAN                 IN     DEFAULT
PROCEDURE INSTANCE
自变量名称                       类型                    输入/输出默认值？
------------------------------ ----------------------- ------ --------
 JOB                            BINARY_INTEGER          IN
 INSTANCE                       BINARY_INTEGER          IN
 FORCE                          BOOLEAN                 IN     DEFAULT
PROCEDURE INTERVAL
自变量名称                       类型                    输入/输出默认值？
------------------------------ ----------------------- ------ --------
 JOB                            BINARY_INTEGER          IN
 INTERVAL                       VARCHAR2                IN
PROCEDURE ISUBMIT
自变量名称                       类型                    输入/输出默认值？
------------------------------ ----------------------- ------ --------
 JOB                            BINARY_INTEGER          IN
 WHAT                           VARCHAR2                IN
 NEXT_DATE                      DATE                    IN
 INTERVAL                       VARCHAR2                IN     DEFAULT
 NO_PARSE                       BOOLEAN                 IN     DEFAULT
PROCEDURE NEXT_DATE
自变量名称                       类型                    输入/输出默认值？
------------------------------ ----------------------- ------ --------
 JOB                            BINARY_INTEGER          IN
 NEXT_DATE                      DATE                    IN
PROCEDURE REMOVE
自变量名称                       类型                    输入/输出默认值？
------------------------------ ----------------------- ------ --------
 JOB                            BINARY_INTEGER          IN
PROCEDURE RUN
自变量名称                       类型                    输入/输出默认值？
------------------------------ ----------------------- ------ --------
 JOB                            BINARY_INTEGER          IN
 FORCE                          BOOLEAN                 IN     DEFAULT
PROCEDURE SUBMIT
自变量名称                       类型                    输入/输出默认值？
------------------------------ ----------------------- ------ --------
 JOB                            BINARY_INTEGER          OUT
 WHAT                           VARCHAR2                IN
 NEXT_DATE                      DATE                    IN     DEFAULT
 INTERVAL                       VARCHAR2                IN     DEFAULT
 NO_PARSE                       BOOLEAN                 IN     DEFAULT
 INSTANCE                       BINARY_INTEGER          IN     DEFAULT
 FORCE                          BOOLEAN                 IN     DEFAULT
PROCEDURE USER_EXPORT
自变量名称                       类型                    输入/输出默认值？
------------------------------ ----------------------- ------ --------
 JOB                            BINARY_INTEGER          IN
 MYCALL                         VARCHAR2                IN/OUT
PROCEDURE USER_EXPORT
自变量名称                       类型                    输入/输出默认值？
------------------------------ ----------------------- ------ --------
 JOB                            BINARY_INTEGER          IN
 MYCALL                         VARCHAR2                IN/OUT
 MYINST                         VARCHAR2                IN/OUT
PROCEDURE WHAT
自变量名称                       类型                    输入/输出默认值？
------------------------------ ----------------------- ------ --------
 JOB                            BINARY_INTEGER          IN
 WHAT                           VARCHAR2                IN17:25:06 jlanzpa817>