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Lu, Huayi ef0ada5a59 DWS DEV 20240716 version 
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com>
Co-authored-by: Lu, Huayi <luhuayi@huawei.com>
Co-committed-by: Lu, Huayi <luhuayi@huawei.com>
2024-11-02 09:07:47 +00:00

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<a name="EN-US_TOPIC_0000001460722832"></a><a name="EN-US_TOPIC_0000001460722832"></a>
<h1 class="topictitle1">Creating and Managing Scheduled Tasks</h1>
<div id="body8662426"><p id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_a9ea75771745f4fc8aa59fe57ebc70b47">GaussDB(DWS) allows users to create scheduled tasks, which are automatically executed at specified time points, reducing O&amp;M workload.</p>
<p id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_a53281b045f304a608e5bc95a7073816d">Database complies with the Oracle scheduled task function using the DBMS.JOB interface, which can be used to create scheduled tasks, execute tasks automatically, delete a task, and modify task attributes(including task ID, enable/disable a task, the task triggering time/interval and task contents).</p>
<div class="note" id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_note7269732153916"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_ul575163717417"><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_li4751437184111">The hybrid data warehouse (standalone) does not support scheduled tasks.</li><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_li1220834164116">The execution statements of scheduled tasks are not recorded in the <a href="dws_04_0397.html">Real-time Top SQL</a> logs. The statements can be recorded only in versions later than 8.2.1.</li><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_li8818279612">By default, GaussDB(DWS) uses the UTC time. The execution time of the scheduled task needs to be converted to the time zone of the user.</li></ul>
</div></div>
<div class="section" id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_s69827ffee4d646608d4ff259b3541297"><h4 class="sectiontitle">Periodic Task Management</h4><ol id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_oef75d53208a64186aca235fb3981983a"><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_l8131a771bb1f454caf55b0b56c3e1b8a"><span>Creates a test table.</span><p><div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_s4e899745546e400bb3b68d8456d9322b"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">CREATE</span><span class="w"> </span><span class="k">TABLE</span><span class="w"> </span><span class="n">test</span><span class="p">(</span><span class="n">id</span><span class="w"> </span><span class="nb">int</span><span class="p">,</span><span class="w"> </span><span class="k">time</span><span class="w"> </span><span class="nb">date</span><span class="p">);</span>
</pre></div></td></tr></table></div>
</div>
<p id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_p4629125315152">If the following information is displayed, the table has been created.</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_screen07941951172311"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">CREATE</span><span class="w"> </span><span class="k">TABLE</span>
</pre></div></td></tr></table></div>
</div>
</p></li><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_l82aafaf11f244f50b679e0eb3cd191ac"><span>Create the customized storage procedure.</span><p><div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_sf7c3dd0b06c54627adc80a54d5224526"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span>
<span class="normal">6</span>
<span class="normal">7</span>
<span class="normal">8</span>
<span class="normal">9</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">CREATE</span><span class="w"> </span><span class="k">OR</span><span class="w"> </span><span class="k">REPLACE</span><span class="w"> </span><span class="k">PROCEDURE</span><span class="w"> </span><span class="n">PRC_JOB_1</span><span class="p">()</span>
<span class="k">AS</span>
<span class="n">N_NUM</span><span class="w"> </span><span class="nb">integer</span><span class="w"> </span><span class="p">:</span><span class="o">=</span><span class="mi">1</span><span class="p">;</span>
<span class="k">BEGIN</span>
<span class="k">FOR</span><span class="w"> </span><span class="n">I</span><span class="w"> </span><span class="k">IN</span><span class="w"> </span><span class="mi">1</span><span class="p">..</span><span class="mi">1000</span><span class="w"> </span><span class="n">LOOP</span>
<span class="k">INSERT</span><span class="w"> </span><span class="k">INTO</span><span class="w"> </span><span class="n">test</span><span class="w"> </span><span class="k">VALUES</span><span class="p">(</span><span class="n">I</span><span class="p">,</span><span class="n">SYSDATE</span><span class="p">);</span>
<span class="k">END</span><span class="w"> </span><span class="n">LOOP</span><span class="p">;</span>
<span class="k">END</span><span class="p">;</span>
<span class="o">/</span>
</pre></div></td></tr></table></div>
</div>
<p id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_p56351017132613">If the following information is displayed, the procedure has been created.</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_screen940372616346"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">CREATE</span><span class="w"> </span><span class="k">PROCEDURE</span>
</pre></div></td></tr></table></div>
</div>
</p></li><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_l837da2ebc4054cac893a39830635c0c4"><span>Create a task.</span><p><ul id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_uda90efa65f094e5db7e1f5621ac972dc"><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_lbc853f20eb2e4fdca2815ac67246f282">Create a task with unspecified <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b845174010165">job_id</strong> and execute the <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b348240101614">PRC_JOB_1</strong> storage procedure every two minutes.<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_sc80ce3aaaae9465f958b2eb352075e75"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">call</span><span class="w"> </span><span class="n">dbms_job</span><span class="p">.</span><span class="n">submit</span><span class="p">(</span><span class="s1">'call public.prc_job_1(); '</span><span class="p">,</span><span class="w"> </span><span class="n">sysdate</span><span class="p">,</span><span class="w"> </span><span class="s1">'interval ''1 minute'''</span><span class="p">,</span><span class="w"> </span><span class="p">:</span><span class="n">a</span><span class="p">);</span>
<span class="n">job</span>
<span class="c1">-----</span>
<span class="mi">1</span>
<span class="p">(</span><span class="mi">1</span><span class="w"> </span><span class="k">row</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</li><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_l147492232e14446da45ef827f089ace2">Create task with specified job_id.<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_sb2ccbf0d5b4542dd9bf580210d2b4778"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">call</span><span class="w"> </span><span class="n">dbms_job</span><span class="p">.</span><span class="n">isubmit</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span><span class="s1">'call public.prc_job_1(); '</span><span class="p">,</span><span class="w"> </span><span class="n">sysdate</span><span class="p">,</span><span class="w"> </span><span class="s1">'interval ''1 minute'''</span><span class="p">);</span>
<span class="n">isubmit</span>
<span class="c1">---------</span>
<span class="p">(</span><span class="mi">1</span><span class="w"> </span><span class="k">row</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</li></ul>
</p></li><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_l76fa9d576b0640179c4eea44845fae97"><span>View the created task information about the current user in the <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b873511131057">USER_JOBS</strong> view.</span><p><p id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_p1834384213191">Only the system administrator can access this system view. For details about the fields, see <a href="dws_04_0866.html#EN-US_TOPIC_0000001510402393__tfc79ceaea73a45b685f452da34d39554">Table 1</a>.</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_s89630c060818448ca5398aa1b761ae1b"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal"> 1</span>
<span class="normal"> 2</span>
<span class="normal"> 3</span>
<span class="normal"> 4</span>
<span class="normal"> 5</span>
<span class="normal"> 6</span>
<span class="normal"> 7</span>
<span class="normal"> 8</span>
<span class="normal"> 9</span>
<span class="normal">10</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">select</span><span class="w"> </span><span class="n">job</span><span class="p">,</span><span class="n">dbname</span><span class="p">,</span><span class="n">start_date</span><span class="p">,</span><span class="n">last_date</span><span class="p">,</span><span class="n">this_date</span><span class="p">,</span><span class="n">next_date</span><span class="p">,</span><span class="n">broken</span><span class="p">,</span><span class="n">status</span><span class="p">,</span><span class="nb">interval</span><span class="p">,</span><span class="n">failures</span><span class="p">,</span><span class="n">what</span><span class="w"> </span><span class="k">from</span><span class="w"> </span><span class="n">user_jobs</span><span class="p">;</span>
<span class="w"> </span><span class="n">job</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">dbname</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">start_date</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">last_date</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">this_date</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">next_date</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">broken</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">status</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="nb">interval</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">failures</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">what</span>
<span class="c1">-----+----------+----------------------------+----------------------------+----------------------------+---------------------+--------+--------+---------------------+----------+----------------</span>
<span class="c1">-----------</span>
<span class="w"> </span><span class="mi">1</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">db_demo</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2022</span><span class="o">-</span><span class="mi">03</span><span class="o">-</span><span class="mi">25</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">58</span><span class="p">:</span><span class="mi">01</span><span class="p">.</span><span class="mi">829436</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2022</span><span class="o">-</span><span class="mi">03</span><span class="o">-</span><span class="mi">25</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">58</span><span class="p">:</span><span class="mi">03</span><span class="p">.</span><span class="mi">174817</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2022</span><span class="o">-</span><span class="mi">03</span><span class="o">-</span><span class="mi">25</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">58</span><span class="p">:</span><span class="mi">01</span><span class="p">.</span><span class="mi">829436</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2022</span><span class="o">-</span><span class="mi">03</span><span class="o">-</span><span class="mi">25</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">59</span><span class="p">:</span><span class="mi">01</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">n</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">s</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="nb">interval</span><span class="w"> </span><span class="s1">'1 minute'</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="k">call</span><span class="w"> </span><span class="k">public</span><span class="p">.</span><span class="n">prc</span>
<span class="n">_job_1</span><span class="p">();</span>
<span class="w"> </span><span class="mi">2</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">db_demo</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2022</span><span class="o">-</span><span class="mi">03</span><span class="o">-</span><span class="mi">25</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">58</span><span class="p">:</span><span class="mi">15</span><span class="p">.</span><span class="mi">893383</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2022</span><span class="o">-</span><span class="mi">03</span><span class="o">-</span><span class="mi">25</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">58</span><span class="p">:</span><span class="mi">16</span><span class="p">.</span><span class="mi">608959</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2022</span><span class="o">-</span><span class="mi">03</span><span class="o">-</span><span class="mi">25</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">58</span><span class="p">:</span><span class="mi">15</span><span class="p">.</span><span class="mi">893383</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">2022</span><span class="o">-</span><span class="mi">03</span><span class="o">-</span><span class="mi">25</span><span class="w"> </span><span class="mi">07</span><span class="p">:</span><span class="mi">59</span><span class="p">:</span><span class="mi">15</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">n</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">s</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="nb">interval</span><span class="w"> </span><span class="s1">'1 minute'</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="k">call</span><span class="w"> </span><span class="k">public</span><span class="p">.</span><span class="n">prc</span>
<span class="n">_job_1</span><span class="p">();</span>
<span class="p">(</span><span class="mi">2</span><span class="w"> </span><span class="k">rows</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</p></li><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_la63c1532f82a4745b95d9a05333b854d"><span>Stop a task.</span><p><div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_s4a25227134114937b4c579895d2cfbb7"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">call</span><span class="w"> </span><span class="n">dbms_job</span><span class="p">.</span><span class="n">broken</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="k">true</span><span class="p">);</span>
<span class="n">broken</span>
<span class="c1">--------</span>
<span class="p">(</span><span class="mi">1</span><span class="w"> </span><span class="k">row</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</p></li><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_lf80e6713bfd7478fbc0653a652974a21"><span>Start a task.</span><p><div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_s6ef801a5ce014db3983341c0256f9a38"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">call</span><span class="w"> </span><span class="n">dbms_job</span><span class="p">.</span><span class="n">broken</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="k">false</span><span class="p">);</span>
<span class="n">broken</span>
<span class="c1">--------</span>
<span class="p">(</span><span class="mi">1</span><span class="w"> </span><span class="k">row</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</p></li><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_lb4477e9a76cc4fbc87840b869c45460c"><span>Modify attributes of a task.</span><p><ul id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_u84d8c7ad6ef047189ff0543f1622f73e"><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_l6cd3c32a1bac4c7583d7c77861ffc8e7">Modify the <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b149217329286">Next_date</strong> parameter information about a task. For example, change the value of <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b4593641816">Next_date</strong> of Job1 to 1 hour.<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_s25f886401a4341ee95553c622a239914"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">call</span><span class="w"> </span><span class="n">dbms_job</span><span class="p">.</span><span class="n">next_date</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="n">sysdate</span><span class="o">+</span><span class="mi">1</span><span class="p">.</span><span class="mi">0</span><span class="o">/</span><span class="mi">24</span><span class="p">);</span>
<span class="n">next_date</span>
<span class="c1">-----------</span>
<span class="p">(</span><span class="mi">1</span><span class="w"> </span><span class="k">row</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</li><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_l10d7020da96c44ec9fb8f96454e9e2c1">Modify the <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b196909571293">Interval</strong> parameter information of a task. For example, change the value of <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b55820439814">Interval</strong> of Job1 to 1 hour.<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_s6aab18d6ecbe4b20b5fd23c4c1e2c732"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">call</span><span class="w"> </span><span class="n">dbms_job</span><span class="p">.</span><span class="nb">interval</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="s1">'sysdate + 1.0/24'</span><span class="p">);</span>
<span class="nb">interval</span>
<span class="c1">----------</span>
<span class="p">(</span><span class="mi">1</span><span class="w"> </span><span class="k">row</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</li><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_l8ef21eced1c9406299981b0907e27710">Modify the <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b34325233017">What</strong> parameter information of a <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b843311211302">JOB</strong>. For example, change <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b968312210915">What</strong> of <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b78061551896">Job1</strong> to <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b245916111792">insert into public.test values(333, sysdate+5)</strong>.<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_sc9968a2920394c5fb55d62c8e6a0d5e7"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">call</span><span class="w"> </span><span class="n">dbms_job</span><span class="p">.</span><span class="n">what</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="s1">'insert into public.test values(333, sysdate+5);'</span><span class="p">);</span>
<span class="n">what</span>
<span class="c1">------</span>
<span class="p">(</span><span class="mi">1</span><span class="w"> </span><span class="k">row</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</li><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_l51fe491f89c94af9aaffd7e1ead4a4b6">Modify <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b842352706112856">Next_date</strong>, <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b84235270611290">Interval</strong>, and <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b84235270611293">What</strong> parameter information of <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b842352706112919">JOB</strong>.<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_s260369612aaf45a6b68b87b138ccac40"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">call</span><span class="w"> </span><span class="n">dbms_job</span><span class="p">.</span><span class="n">change</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="s1">'call public.prc_job_1();'</span><span class="p">,</span><span class="w"> </span><span class="n">sysdate</span><span class="p">,</span><span class="w"> </span><span class="s1">'interval ''1 minute'''</span><span class="p">);</span>
<span class="n">change</span>
<span class="c1">--------</span>
<span class="p">(</span><span class="mi">1</span><span class="w"> </span><span class="k">row</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</li></ul>
</p></li><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_l23f44a7e0e0a4589981871b6117cd924"><span>Delete a job.</span><p><div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_s7a2b90ce28ce4895a8b5e0c2c9e1e08c"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">call</span><span class="w"> </span><span class="n">dbms_job</span><span class="p">.</span><span class="n">remove</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span>
<span class="n">remove</span>
<span class="c1">--------</span>
<span class="p">(</span><span class="mi">1</span><span class="w"> </span><span class="k">row</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
</p></li><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_le1b63e8f5d9642169eca2dc0165168eb"><span>Set job permissions.</span><p><ul id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_u882d1628a3aa493aba21e9942675e9e3"><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_l8b74cc61d9804c6f8ee5522791dc1868">During the creation of a job, the job is bound to the user and database that created the job. Accordingly, the user and database are added to <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b36472545265">dbname</strong> and <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b16471954122614">log_user</strong> columns in the <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b664711540260">pg_job</strong> system view, respectively.</li><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_l4745cf1bb3874e248db2348fcf3de01c">If the current user is a DBA user, system administrator, or the user who created the job (<strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b11813511192715">log_user</strong> in <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b9814161122716">pg_job</strong>), the user has the permissions to delete or modify parameter settings of the job using the remove, change, next_data, what, or interval interface. Otherwise, the system displays a message indicating that the current user has no permission to perform operations on the JOB.</li><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_l2f7987e6b0dc44c4b554f444a353dc7b">If the current database is the one that created a job, (that is, <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b4989163916330">dbname</strong> in <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b11989143911339">pg_job</strong>), you can delete or modify parameter settings of the job using the remove, change, next_data, what, or interval interface.</li><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_l1344c340986e452285ad57513b7b35cc">When deleting the database that created a job, (that is, <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b2013865053313">dbname</strong> in <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b913825023311">pg_job</strong>), the system associatively deletes the job records of the database.</li><li id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_l8157b68968e84c23ae091fec5e07ac52">When deleting the user who created a job, (that is, <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b128231254813">log_user</strong> in <strong id="EN-US_TOPIC_0000001460722832__en-us_topic_0000001233761715_b5296161214819">pg_job</strong>), the system associatively deletes the job records of the user.</li></ul>
</p></li></ol>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="dws_04_0016.html">Defining Database Objects</a></div>
</div>
</div>
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