Backing up database with missing datafile
Is there a way to backup a Oracle 12c database which has a missing datafile? I dont have backups. Database is running in archive log mode. One of the data files is physically missing from the disk. But...
View ArticleCan standby database of a physical database be pluggable or vice versa?
We are currently planning to upgrade our databases from 11g to 12c. But I have some confusions regarding 12c. Here are my questions. Can standby database of a non-container database be pluggable or...
View ArticleMassive deviation of tablespace max_size compared to bytes used by segments...
I just checked the size of our tablespaces, because the admins said that they’ve made them bigger after we’ve had a full tablespace yesterday and I’ve discovered something really strange. I hope...
View ArticleTable redefinition ends with ORA-02448
I’m trying to redefine a table to be partitioned. What I did: CREATE TABLE WERTEVAR_TMP( "WVTEIL" NUMBER(10,0), "WVMERKMAL" NUMBER(5,0), "WVUNTERS" NUMBER(5,0), "WVWERTNR" NUMBER(10,0), "WVWERT"...
View ArticleIgnore white spaces for comparison in unique constraints of Oracle
How can I tell to Oracle DBMS to ignore white spaces while comparing varchar values for Unique Constraints. It means that NAME 1 is exists in a table column with Unique Key, inserting NAME1, causes...
View Articlemissing files, installing Oracle DB 12c on Oracle Linux 7.2
when I try to Install the Database I get this error message: Source location is incomplete. Make sure you have downloaded and extracted all the relevant archives. I did try this twice with the same...
View Articleselect string that doesn't contain a substring/field
TableA.content is varchar2(4000), which was populated from a CLOB value that contains markup and text for a website, paragraphs actually. TableB.keyword contains a string that I want to find in...
View ArticleFATAL INS-32012 Unable to create directory – Oracle 12c client installation
I am installing oracle client as Administrator in my Linux machine as a silent mode, I faced issue like this [FATAL] [INS-32012] Unable to create directory: /u01/app/12.1.0.2/admclient64. I don’t know...
View ArticleCan I delete an Oracle “Whole database backup” while a level 0 backup is...
I have created a Whole database backup using: -- In SQL*Plus ALTER SYSTEM SET DB_RECOVERY_FILE_DEST_SIZE = 5000G SCOPE=BOTH; ALTER SYSTEM SET DB_RECOVERY_FILE_DEST = 'O:ORA_FRA'; alter system set...
View ArticleWhy is a Full Database Backup (as opposed to a level 0 backup) required in...
The Oracle 12c 2 Day DBA manual states: While whole database backups can be an important element in your overall backup strategy, they are also a required step in some situations, such as when you...
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