![]() ![]() Rad techs might also specialize in mammography, where they use low-dose X-ray systems to produce images of the breast. In addition to performing diagnostic imaging examinations, they also prepare patients for procedures and take X-rays and CT scans for diagnostic purposes. Radiologic technologists, also known as radiology technologists, radiographers, or rad techs, have varied work duties. While some of their job responsibilities may be similar, there are some significant distinctions that differentiate these specialists. BEGIN DBMS_SCHEDULER.CREATE_JOB (ĭBMS_SCHEDULER.COPY_JOB('primary_job','standby_job') ĭBMS_SCHEDULER.ENABLE(name=>'standby_job', commit_semantics=>'ABSORB_ERRORS') ĭBMS_SCHEDULER.The Bureau of Labor Statistics (BLS) lists Radiologic and MRI technologists under the same category. When you copy a job, the new job is disabled, so you must enable the new job. If the primary database then becomes a logical standby, the job continues to run according to its schedule. It then makes a copy of this job and sets its database_role attribute to ' LOGICAL STANDBY'. The example starts by creating a job called primary_job on the primary database. You can run the same job in both roles using the following steps:Ĭhange the database_role attribute of the new job to the required role The method used is to create two copies of the job and assign a different database_role attribute to each.īy default, a job runs when the database is in the role that it was in when the job was created. This example explains how to enable a job to run in both database roles. To do so, you set the database_role attribute. You can configure a job to run only when the database is in the primary role or only when the database is in the logical standby role. In an Oracle Data Guard environment, the Scheduler includes additional support for two database roles: primary and logical standby. Repeat_interval => 'freq=daily byhour=13 byminute=0 bysecond=0',Įxample of Crea ting a Job In an Oracle Data Guard Environment create a chain job to start the chain daily at 1:00 p.m. ![]() 'my_chain1', 'stepB COMPLETED AND stepC COMPLETED', 'END') 'my_chain1', 'stepA COMPLETED', 'Start stepB, stepC') define corresponding rules for the chain.ĭBMS_SCHEDULER.DEFINE_CHAIN_RULE('my_chain1', 'TRUE', 'START stepA') Referenced programs must be enabled.ĭBMS_SCHEDULER.DEFINE_CHAIN_STEP('my_chain1', 'stepA', 'my_program1') ĭBMS_SCHEDULER.DEFINE_CHAIN_STEP('my_chain1', 'stepB', 'my_program2') ĭBMS_SCHEDULER.DEFINE_CHAIN_STEP('my_chain1', 'stepC', 'my_program3') See "Setting Chain Privileges" for more information. The user for this example must have the CREATE EVALUATION CONTEXT, CREATE RULE, and CREATE RULE SET privileges. my_program2 and my_program3 run in parallel after my_program1 has completed. The following example creates a chain where my_program1 runs before my_program2 and my_program3. Call SET_JOB_ATTRIBUTES to set all 20 set attributes in one transactionĭBMS_SCHEDULER.SET_JOB_ATTRIBUTES(newattrarr, 'TRANSACTIONAL') Newattr := sys.jobattr(job_name => 'TESTJOB' || to_char(i),Īttr_value => systimestamp + interval '24' hour) Create and initialize a JOBATTR object type ![]() The following example sets four different attributes for each of five jobs: DECLARE Example 30-4 Setting Multiple Job Attributes for a Set of Jobs ![]()
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