Oracle Error 01445
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Apex Ora-01445: Cannot Select Rowid From, Or Sample, A Join View Without A Key-preserved Table
ORA-01445: Cannot Select ROWID ora-01445 merge from a Join View without a Key-Preserved Table Expert Oracle Database Tips by Burleson Consulting February 25, 2015 Question:
Ora-01445 Apex Tabular Form
My database was seriously running out of space, and when I checked the Segment Advisor Recommendation on OEM some tables were recommended for shrinking, so I clicked on execute through the OEM ora 01445 key preserved table and it successfully executed the following commands. alter table "customer.account" enable row movement alter table "customer.account" shrink space But now users have being complaining of getting error ORA-01445 from their applications. What can we do? Answer: To diagnose any error, you start by using the oerr utility to display the ORA-01445 error:
ORA-01445: cannot select ROWID from a join view without a key-preserved table Cause: A ora 01445 oracle forms SELECT statement attempted to select ROWIDs from a view derived from a join operation. Because the rows selected in the view do not correspond to underlying physical records, no ROWIDs can be returned. Action: Remove ROWID from the view selection clause, then re-execute the statement. First, try removing the ROWID from the view selection clause. This might fix the errors. However, there are other causes for ORA-01445. Check to see if a primary key exists on the tables subject to the join. Usually that causes the ORA-01445 error. The solution is to either create primary key constraints on the base tables, or create the materialized view with the BUILD IMMEDIATE option: (1) create primary key constraints on the base table SQL> alter table test1 add constraint pk_test1 primary key (test1_coas_code); SQL> alter table test2 add constraint pk_test2 primary key (test2_coas_code); or (2) create the materialized view with BUILD IMMEDIATE Also, check the patch level as it may be a bug in the specific version of Oracle. More information is available in Metalink #101349.1 Get the Complete Oracle SQL Tuning Information The landmark book "Advanced Oracle SQL Tuning The Definitive Reference" is filled wilog in tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies
Frm-40501: Oracle Error: Unable To Reserve Record For Update Or Delete.
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Ora-01445 Sql Developer
_ Database Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their database skills and learn from others in the community. Join them; it http://www.dba-oracle.com/t_ora_01445_cannot_select_rowid_from_join_view_without_key_preserved_table.htm only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Atypical problem with ORA-01445 up vote 4 down vote favorite I have problem with following query Q1: SELECT ADDRESS.STREET FROM MYSALES.MYADDRESS ADDRESS INNER JOIN MYSALES.MYCOUNTRY MCOUNTRY ON MCOUNTRY.MYCOUNTRY_ID = ADDRESS.MYCOUNTRY_ID INNER JOIN MYGLOBAL.COUNTRY COUNTRY http://dba.stackexchange.com/questions/21775/atypical-problem-with-ora-01445 ON COUNTRY.COUNTRY_ID = MCOUNTRY.COUNTRY_ID When we translate this to good old notation, Q2: SELECT ADDRESS.STREET FROM MYSALES.MYADDRESS ADDRESS ,MYSALES.MYCOUNTRY MCOUNTRY ,MYGLOBAL.COUNTRY COUNTRY WHERE MCOUNTRY.MYCOUNTRY_ID = ADDRESS.MYCOUNTRY_ID AND COUNTRY.COUNTRY_ID = MCOUNTRY.COUNTRY_ID The problems start when I wrap in view: SELECT * FROM (Q1) or SELECT * FROM (Q2) results with error: ORA-01445: cannot select ROWID from, or sample, a join view without a key-preserved table 01445. 00000 - "cannot select ROWID from, or sample, a join view without a key-preserved table" But for query Q3: SELECT * FROM MYSALES.MYCOUNTRY MCOUNTRY INNER JOIN MYGLOBAL.COUNTRY COUNTRY ON COUNTRY.COUNTRY_ID = MCOUNTRY.COUNTRY_ID Result of SELECT * FROM (Q3) is correct. So the problem is in Q4: SELECT * FROM MYSALES.MYADDRESS ADDRESS INNER JOIN MYSALES.MYCOUNTRY MCOUNTRY ON MCOUNTRY.MYCOUNTRY_ID = ADDRESS.MYCOUNTRY_ID When I wrap the last query in a view, it fails, with the above error. The columns that end with _ID, are should be primary or references key. Could you please guide me a hint where should I look for solution ? oracle query errors share|improve this question edited Jul 31 '12 at 20:12 asked Jul 31 '12 at 19:26 Damian Leszczyński - Vash
I executedthe following query:select rowid, table_name from dba_tables where table_name = 'r'*ERROR http://grokbase.com/t/freelists.org/oracle-l/084az86s6k/ora-01445-cannot-select-rowid-from-or-sample-a-join-view-without-a-key-preserved-table at line 1:ORA-01445: cannot select ROWID from, or sample, a join view without akey-preserved tableCheck the internet but provide no reason, leads. Neither does "oerr"help - http://oracleobserver.com/node/39 nothing mentioned for cause and action.--http://www.freelists.org/webpage/oracle-l reply Tweet Search Discussions Search All Groups oracle-l 5 responses Oldest Nested Jeremiah Wilton What are you trying to accomplish by oracle error selecting the ROWID pseudocolumn from DBA_TABLES? DBA_TABLES is a view that joins a number of real SYS tables like TAB$, etc. It isnât really meaningful to ask for ROWID here. I think you might be meaning to use ROWNUM. Jeremiah Wilton ORA-600 Consulting http://www.ora-600.net -- http://www.freelists.org/webpage/oracle-l Jeremiah Wilton at Apr 10, 2008 at oracle error 01445 6:45 am ⇧ Peter Teoh wrote:select rowid, table_name from dba_tables where table_name = 'r'ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ *ERROR at line 1:ORA-01445: cannot select ROWID from, or sample, a join view withouta key-preserved tableCheck the internet but provide no reason, leads.ÂÂ Neither does"oerr" help - nothing mentioned for cause and action.What are you trying to accomplish by selecting the ROWID pseudocolumn fromDBA_TABLES? DBA_TABLES is a view that joins a number of real SYS tables likeTAB$, etc. It isnât really meaningful to ask for ROWID here. I think youmight be meaning to use ROWNUM.Jeremiah WiltonORA-600 Consultinghttp://www.ora-600.net--http://www.freelists.org/webpage/oracle-l reply | permalink Ken Naim Dba_tables, is a view of several sys and x$ tables many of which don't have unique indexes/constraints. Ken From: oracle-l-bounce_at_freelists.org On Behalf Of Peter Teoh Sent: Thursday, April 10, 2008 1:57 AM To: Oracle-L Freelists Subject: ORA-01445: cannot select ROWID from, or sample, a join view without a key-preserved table I executed the following query: select rowid, table_name from dba_tables wher
Six different Ways to Concatenate Strings in PL/SQL Oracle APEX 4 - Wrap Text In Report Column Using CSS Oracle APEX - How to tell if your instance is running EPG, Apex Listener or HTTP Oracle APEX 4.1 Force a Region to a Specific Width Oracle Pre Built VMs for Database Development 32-bit or 64-bit Calculate a Percent of Total in Oracle SQL Query Using RATIO_TO_REPORT and OVER () Create a floating Region that is pinned in place while you scroll screen Easy way to Audit your DML transactions in Apex APEX Automated Row Fetch Failing Due to Primary Key of Type CHAR(20) Oracle APEX - Interactive Report ORA-01445: cannot select ROWID from, or sample, a join view without a key-preserved table more Home » Blogs » gpmilliken's blog Oracle APEX - Interactive Report ORA-01445: cannot select ROWID from, or sample, a join view without a key-preserved table Submitted by gpmilliken on Sat, 07/09/2011 - 22:36 I recently was working on an interactive report in Oracle Apex 4 and ran across this error The report query needs a unique key to identify each row. The supplied key cannot be used for this query. Please edit the report attributes to define a unique key column. Report ORA-01445: cannot select ROWID from, or sample, a join view without a key-preserved table Strange, because the query runs fine in SQL Developer and TOAD. Fortunately the query was similar to another IR report and I had only made one small change, which was to add an outer join for a status code that sometimes may be NULL. Removing that and replacing it with an inline lookup immediately fixed the issue. For example SELECT COl1, COL2, STATUS, COL4 FROM TABLE1 A, STATUS_TABLE B WHERE A.STATUS_ID=B.ID (+); flipped around like this fixes the issue and allows APEX to use the query in an Interactive Report. SELECT COl1, COL2, NVL((SELECT B.STATUS_NAME STATUS FROM STATUS_TABLE B WHERE A.STATUS_ID=B.ID), 'NO STATUS') STATUS, COL4 FROM TABLE1 A; » gpmilliken's blog Login to post comments Copyright (C) 2012 George P. Milliken All Rights Reserved