https://www.oraclescripts.com/tags/user_constraints/Recent content in User_constraints on Oracle ScriptsHugo -- gohugo.ioenOracleScripts.comTue, 18 Jun 2024 00:00:00 +0000https://www.oraclescripts.com/post/list-oracle-tables-that-are-using-the-specified-oracle-table-as-a-foreign-key/Tue, 18 Jun 2024 00:00:00 +0000https://www.oraclescripts.com/post/list-oracle-tables-that-are-using-the-specified-oracle-table-as-a-foreign-key/ <h2 id="list-tables-that-are-using-the-specified-table-as-a-foreign-key-using-dba_constraints">List Tables That Are Using the Specified Table as a Foreign Key using dba_constraints</h2> <p>Learn how to use an Oracle SQL query to identify tables referencing a specific table with foreign keys, understand database relationships, and ensure data integrity <script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-1012089347386563" crossorigin="anonymous"></script> <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-1012089347386563" data-ad-slot="5317081938" data-ad-format="auto" data-full-width-responsive="true"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> </p> <h2 id="sample-sql-command">Sample SQL Command</h2> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gdscript3" data-lang="gdscript3"><span class="line"><span class="ln"> 1</span><span class="cl"><span class="n">set</span> <span class="n">lines</span> <span class="mi">100</span> <span class="n">pages</span> <span class="mi">999</span> </span></span><span class="line"><span class="ln"> 2</span><span class="cl"><span class="n">select</span> <span class="n">a</span><span class="o">.</span><span class="n">owner</span> </span></span><span class="line"><span class="ln"> 3</span><span class="cl"><span class="p">,</span> <span class="n">a</span><span class="o">.</span><span class="n">table_name</span> </span></span><span class="line"><span class="ln"> 4</span><span class="cl"><span class="p">,</span> <span class="n">a</span><span class="o">.</span><span class="n">constraint_name</span> </span></span><span class="line"><span class="ln"> 5</span><span class="cl"><span class="n">from</span> <span class="n">dba_constraints</span> <span class="n">a</span> </span></span><span class="line"><span class="ln"> 6</span><span class="cl"><span class="p">,</span> <span class="n">dba_constraints</span> <span class="n">b</span> </span></span><span class="line"><span class="ln"> 7</span><span class="cl"><span class="n">where</span> <span class="n">a</span><span class="o">.</span><span class="n">constraint_type</span> <span class="o">=</span> <span class="s1">&#39;R&#39;</span> </span></span><span class="line"><span class="ln"> 8</span><span class="cl"><span class="ow">and</span> <span class="n">a</span><span class="o">.</span><span class="n">r_constraint_name</span> <span class="o">=</span> <span class="n">b</span><span class="o">.</span><span class="n">constraint_name</span> </span></span><span class="line"><span class="ln"> 9</span><span class="cl"><span class="ow">and</span> <span class="n">a</span><span class="o">.</span><span class="n">r_owner</span> <span class="o">=</span> <span class="n">b</span><span class="o">.</span><span class="n">owner</span> </span></span><span class="line"><span class="ln">10</span><span class="cl"><span class="ow">and</span> <span class="n">b</span><span class="o">.</span><span class="n">owner</span> <span class="o">=</span> <span class="s1">&#39;&amp;table_owner&#39;</span> </span></span><span class="line"><span class="ln">11</span><span class="cl"><span class="ow">and</span> <span class="n">b</span><span class="o">.</span><span class="n">table_name</span> <span class="o">=</span> <span class="s1">&#39;&amp;table_name&#39;</span> </span></span><span class="line"><span class="ln">12</span><span class="cl"><span class="o">/</span> </span></span></code></pre></div><h2 id="same-as-above-but-produces-disable-constraint-statements">Same as above, but produces 'disable constraint' statements</h2> <div class="highlight"><pre tabindex="0" class="chroma"><code class="language-gdscript3" data-lang="gdscript3"><span class="line"><span class="ln"> 1</span><span class="cl"><span class="n">set</span> <span class="n">lines</span> <span class="mi">100</span> <span class="n">pages</span> <span class="mi">999</span> </span></span><span class="line"><span class="ln"> 2</span><span class="cl"><span class="n">select</span> <span class="n">a</span><span class="o">.</span><span class="n">owner</span> </span></span><span class="line"><span class="ln"> 3</span><span class="cl"><span class="p">,</span> <span class="n">a</span><span class="o">.</span><span class="n">table_name</span> </span></span><span class="line"><span class="ln"> 4</span><span class="cl"><span class="p">,</span> <span class="n">a</span><span class="o">.</span><span class="n">constraint_name</span> </span></span><span class="line"><span class="ln"> 5</span><span class="cl"><span class="n">from</span> <span class="n">dba_constraints</span> <span class="n">a</span> </span></span><span class="line"><span class="ln"> 6</span><span class="cl"><span class="p">,</span> <span class="n">dba_constraints</span> <span class="n">b</span> </span></span><span class="line"><span class="ln"> 7</span><span class="cl"><span class="n">where</span> <span class="n">a</span><span class="o">.</span><span class="n">constraint_type</span> <span class="o">=</span> <span class="s1">&#39;R&#39;</span> </span></span><span class="line"><span class="ln"> 8</span><span class="cl"><span class="ow">and</span> <span class="n">a</span><span class="o">.</span><span class="n">r_constraint_name</span> <span class="o">=</span> <span class="n">b</span><span class="o">.</span><span class="n">constraint_name</span> </span></span><span class="line"><span class="ln"> 9</span><span class="cl"><span class="ow">and</span> <span class="n">a</span><span class="o">.</span><span class="n">r_owner</span> <span class="o">=</span> <span class="n">b</span><span class="o">.</span><span class="n">owner</span> </span></span><span class="line"><span class="ln">10</span><span class="cl"><span class="ow">and</span> <span class="n">b</span><span class="o">.</span><span class="n">owner</span> <span class="o">=</span> <span class="s1">&#39;&amp;table_owner&#39;</span> </span></span><span class="line"><span class="ln">11</span><span class="cl"><span class="ow">and</span> <span class="n">b</span><span class="o">.</span><span class="n">table_name</span> <span class="o">=</span> <span class="s1">&#39;&amp;table_name&#39;</span> </span></span><span class="line"><span class="ln">12</span><span class="cl"><span class="o">/</span> </span></span></code></pre></div><p><strong>Purpose:</strong></p>