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<a class="user-hover" rel="steve" id="email_steve" href="https://hibernate.onjira.com/secure/ViewProfile.jspa?name=steve" style="color:#6c797f;">Steve Ebersole</a>
updated <img src="https://hibernate.onjira.com/images/icons/bug.gif" height="16" width="16" border="0" align="absmiddle" alt="Bug"> <a style='color:#6c797f;text-decoration:none;' href='https://hibernate.onjira.com/browse/HHH-1168'>HHH-1168</a>
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<a style='color:#6c797f;text-decoration:none;' href='https://hibernate.onjira.com/browse/HHH-1168'><strong>Problem in a query with LockMode, setMaxResults and order by in oracle 9</strong></a>
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<strong style="font-weight:normal;color:#505050;">Change By:</strong>
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<a class="user-hover" rel="steve" id="email_steve" href="https://hibernate.onjira.com/secure/ViewProfile.jspa?name=steve" style="color:#6c797f;">Steve Ebersole</a>
(19/Nov/12 6:27 PM)
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<strong style="font-weight:normal;color:#505050;">Description:</strong>
</td>
<td style="color:#000000;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:12px;padding:0 0 10px 0;width:100%;">
<span class="diffcontext">I'm trying to make a select for update that returns only 1 row and in the query there is an order by:</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br><br>{code:borderStyle=solid}<br></span>
<span class="diffcontext"><query name="msg_m_to_b.select.head.by.userId.appId"></span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br></span>
<span class="diffcontext"> from MessageMtoB msg</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br></span>
<span class="diffcontext"> where msg.userId = ? and msg.applicationId = ? and msg.blockId is null</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br></span>
<span class="diffcontext"> order by msg.id asc</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br></span>
<span class="diffcontext"></query></span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br><br><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br><br><br></span>
<span class="diffcontext">Query query = session.getNamedQuery("msg_m_to_b.select.head.by.userId.appId");</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br></span>
<span class="diffcontext">query.setMaxResults(1);</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br></span>
<span class="diffcontext">query.setLockMode("msg", LockMode.UPGRADE);</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br></span>
<span class="diffcontext">query.setLong(0, userId);</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br></span>
<span class="diffcontext">query.setLong(1, appId);</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br></span>
<span class="diffcontext">message = (IMessage) query.uniqueResult();</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br><br><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br>{code}<br><br></span>
<span class="diffcontext">The query that generates is incorrect:</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"> <br><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"> <br><br>{code:borderStyle=solid}<br></span>
<span class="diffcontext">select * from (</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"> <br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"> <br></span>
<span class="diffcontext">        select messagemto0_.MOAPVKMSGMT_ID as MOAPVKMS1_, messagemto0_.MOAPVUMSGMT_MESSAGE_ID as MOAPVUMS2_6_, messagemto0_.MOAPNFMSGMT_USER_ID as MOAPNFMS3_6_, messagemto0_.MOAPNKMSGMT_LICENSE_ID as MOAPNKMS4_6_, messagemto0_.MOAPVFMSGMT_IN_RESPONSE_OF as MOAPVFMS5_6_, messagemto0_.MOAPNFMSGMT_APPLICATION_ID as MOAPNFMS6_6_, messagemto0_.MOAPDGMSGMT_CREATION_DATE as MOAPDGMS7_6_, messagemto0_.MOAPCVMSGMT_MESSAGE_BODY as MOAPCVMS8_6_, messagemto0_.MOAPVGMSGMT_BLOCK_ID as MOAPVGMS9_6_, messagemto0_.MOAPDGMSGMT_ENQUEUE_DATE as MOAPDGM10_6_</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"> <br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"> <br></span>
<span class="diffcontext">        from MOAPTBMSG_M_TO_T messagemto0_</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"> <br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"> <br></span>
<span class="diffcontext">        where messagemto0_.MOAPNFMSGMT_USER_ID=? and messagemto0_.MOAPNFMSGMT_APPLICATION_ID=? and (messagemto0_.MOAPVGMSGMT_BLOCK_ID is null)</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"> <br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"> <br></span>
<span class="diffcontext">        order by messagemto0_.MOAPVKMSGMT_ID asc )</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"> <br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"> <br></span>
<span class="diffcontext">where rownum <= ? for update of messagemto0_.MOAPVKMSGMT_ID</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br><br></span>
<span class="diffcontext">---> ORA-00904: messagemto0_.MOAPVKMSGMT_ID not a valid identifier</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br>{code}<br><br></span>
<span class="diffcontext">The field in the "for update" should be MOAPVKMS1_:</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br><br>{code:borderStyle=solid}<br></span>
<span class="diffcontext">select * from (</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"> <br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"> <br></span>
<span class="diffcontext">        select messagemto0_.MOAPVKMSGMT_ID as MOAPVKMS1_, messagemto0_.MOAPVUMSGMT_MESSAGE_ID as MOAPVUMS2_6_, messagemto0_.MOAPNFMSGMT_USER_ID as MOAPNFMS3_6_, messagemto0_.MOAPNKMSGMT_LICENSE_ID as MOAPNKMS4_6_, messagemto0_.MOAPVFMSGMT_IN_RESPONSE_OF as MOAPVFMS5_6_, messagemto0_.MOAPNFMSGMT_APPLICATION_ID as MOAPNFMS6_6_, messagemto0_.MOAPDGMSGMT_CREATION_DATE as MOAPDGMS7_6_, messagemto0_.MOAPCVMSGMT_MESSAGE_BODY as MOAPCVMS8_6_, messagemto0_.MOAPVGMSGMT_BLOCK_ID as MOAPVGMS9_6_, messagemto0_.MOAPDGMSGMT_ENQUEUE_DATE as MOAPDGM10_6_</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"> <br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"> <br></span>
<span class="diffcontext">        from MOAPTBMSG_M_TO_T messagemto0_</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"> <br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"> <br></span>
<span class="diffcontext">        where messagemto0_.MOAPNFMSGMT_USER_ID=? and messagemto0_.MOAPNFMSGMT_APPLICATION_ID=? and (messagemto0_.MOAPVGMSGMT_BLOCK_ID is null)</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"> <br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"> <br></span>
<span class="diffcontext">        order by messagemto0_.MOAPVKMSGMT_ID asc )</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"> <br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"> <br></span>
<span class="diffcontext">where rownum <= ? for update of MOAPVKMS1_</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br><br><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br>{code}<br><br></span>
<span class="diffcontext">Now, this query gives the following error:</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"> <br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"> <br></span>
<span class="diffcontext"> ORA-02014:, cannot select FOR UPDATE from view with DISTINCT, GROUP BY, etc.</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br><br></span>
<span class="diffcontext">I think that this is because you can't put an order by in the inner query and a for update in the external query.</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br><br></span>
<span class="diffcontext">I re-write the query, adding the rownum condition to the inner query and eliminating the extenal query:</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br><br>{code:borderStyle=solid}<br></span>
<span class="diffcontext">select messagemto0_.MOAPVKMSGMT_ID as MOAPVKMS1_, messagemto0_.MOAPVUMSGMT_MESSAGE_ID as MOAPVUMS2_6_, messagemto0_.MOAPNFMSGMT_USER_ID as MOAPNFMS3_6_, messagemto0_.MOAPNKMSGMT_LICENSE_ID as MOAPNKMS4_6_, messagemto0_.MOAPVFMSGMT_IN_RESPONSE_OF as MOAPVFMS5_6_, messagemto0_.MOAPNFMSGMT_APPLICATION_ID as MOAPNFMS6_6_, messagemto0_.MOAPDGMSGMT_CREATION_DATE as MOAPDGMS7_6_, messagemto0_.MOAPCVMSGMT_MESSAGE_BODY as MOAPCVMS8_6_, messagemto0_.MOAPVGMSGMT_BLOCK_ID as MOAPVGMS9_6_, messagemto0_.MOAPDGMSGMT_ENQUEUE_DATE as MOAPDGM10_6_</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"> <br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"> <br></span>
<span class="diffcontext">from MOAPTBMSG_M_TO_T messagemto0_</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"> <br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"> <br></span>
<span class="diffcontext">where messagemto0_.MOAPNFMSGMT_USER_ID=? and messagemto0_.MOAPNFMSGMT_APPLICATION_ID=? and (messagemto0_.MOAPVGMSGMT_BLOCK_ID is null) and rownum <= ?</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"> <br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"> <br></span>
<span class="diffcontext">order by messagemto0_.MOAPVKMSGMT_ID asc</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br></span>
<span class="diffcontext">for update of messagemto0_.MOAPVKMSGMT_ID</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br>{code}<br><br></span>
<span class="diffcontext">this query works</span>
<span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"><br><br></span>
<span class="diffaddedchars" style="background-color:#ddfade;"><br><br></span>
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