I know that you can view all constraints in a table using $USER_CONSTRAINTS or $USER_INDEXES view. What i find difficult is that the information in those views is not really well presented.
I find it very hard to follow. For example, just to find out which columns are foreign keys and which tables they refer to is really tedious. Is there a simpler way to view all the constraints especially foreign keys of a table and including which table columns they refer to in the child table.
I like to see a diagramatic representaion of all the tables involved so i like to see both the parent and the child tables, which columns are related and using which FKs etc. is there an easier way to view this information?
difference between V$ and V_$ views. It looks same to me. lets take the example of V$LOG and V_$LOG , both views returns same set of columns when described.
SQL> desc V$LOG Name Null? Type ----------------------------------------- -------- ----------------- GROUP# NUMBER THREAD# NUMBER SEQUENCE# NUMBER BYTES NUMBER MEMBERS NUMBER ARCHIVED VARCHAR2(3) STATUS VARCHAR2(16) FIRST_CHANGE# NUMBER FIRST_TIME DATE
SQL> desc V_$LOG Name Null? Type ----------------------------------------- -------- ----------------- GROUP# NUMBER THREAD# NUMBER SEQUENCE# NUMBER BYTES NUMBER MEMBERS NUMBER ARCHIVED VARCHAR2(3) STATUS VARCHAR2(16) FIRST_CHANGE# NUMBER FIRST_TIME DATE
Is it possible to create trigger on the various tables and views exists (i.e. dynamic performance views) in data dictionary, when ever any DML operations performs by Oracle it self?
I have a created a materialized view which is based on a view on remote database. Now how do I refresh the view.
Materialized view is created by
CREATE MATERIALIZED VIEW mv_employee_name AS SELECT EMPLID, EMPL_NAME FROM VEMPDATA@REMOTEDB WHERE REGION = 'US';
I am wondering how the refersh happens or how do I specify the refresh clause.REFRESH FAST option is looking for VIEW LOG on the master table but in this case its a remote view, so I cannot create any object on remote db.
I am removing sal column from table tab_emp; i want to check whether any materialized view or view using this column by querying using data dictionary :- if i use like condition against query column of all_mviews it is throwing error sicne it is long data type. is there a way to search it without creating any function and use it in a query.
I'm an absolut Oracle beginner and have problems with loading csv files into an Oracle DB. I get 2 files in the morning, the first one has provisionally information like that:
I load them with sqlload into my table. Table keys are the frist three fields. Now in the second file there are updates in the numbers, f.e. like that:
i just posted another topic where i heard about external table and i had a few questions concerning them. I thought it was best to create a new topic than to continue on the other one...
I noticed that to create an external table the CTL is like this: CREATE TABLE emp_load (FIELDS description) ORGANIZATION EXTERNAL (TYPE ORACLE_LOADER DEFAULT DIRECTORY ext_tab_dir ACCESS PARAMETERS (RECORDS FIXED 62 FIELDS (employee_number CHAR(2),
[Code]...
1) This creates an external table, but, is it possible to Create a normal table in a CTL file? For physical tables, the table has to exist right?
2) if you create a view linked to 2 external tables and if the CSV files are updated each day, the external tables will be updated automatically, and the view will be updated as well?
3) Can't there be any synchronisation problems?
4) What happens if a select request (or someone requests on the view) while the CSV file is being updated?
5) Is there anyway you can protect the accesses from those tables/views when the CSVs are being updated?
6) Is it possible to create an index on these sort of tables?
7) Is it possible to index a view?
8) Are external tables visible on a tool like sql developper?
I have to convert some existing materialized views (fast refresh) to partition materialized views.
Database version is oracle 10.1.0.4. I have decided to use on prebuilt table option to do the partitioning as it minimizes the time to transfer from the master site.
1) stop replication 1) create interim tables with similar structure as the materialized views 2) transfer all data from the materialized views to the interim tables 4) script out the materialized views structure and add in on prebuilt table option in the scripts 5) drop the materialized views 6) rename the interim tables with the same name as the materialized views 7) run the scripts to create the materialized views with on prebuilt table option 8) refresh the newly created materialized views -> it should take a short time since I am using on prebuilt table option
But I am facing one major issue. That is if I drop the materialized views, the materialized view logs of the master tables are purged. When the materialized views are refreshed fast, there are some data missing. the data that are purged out when the materialized view are dropped.
Do you happen to know other ways that existing materialized views can be converted to partitioned materialized views? Do you have any workaround to prevent the materialized view logs from being purged?
I have a requirement to import text files which are generated from 3d modelling software xsteel where it records all geometric information and i want to import this information into oracle table.
I have database jobs that upload the data in my applications.My problem is while copying the record of one application to another, the format of dates goes wrongFor example:
The date in one column is 01-JAN-1941 but in the other record while copying ot goes as 01-JAN-2041.
I have a strange problem with query with like and %.
When I run this script:
ALTER SESSION SET NLS_SORT = 'BINARY_CI'; ALTER SESSION SET NLS_COMP = 'LINGUISTIC'; -- drop table test1; CREATE TABLE TEST1(K1 NVARCHAR2(80)); INSERT INTO TEST1 VALUES ('gsdk');
When i change datatype in column to varchar2 this code work correct.
The execution plan:
PLAN_TABLE_OUTPUT SQL_ID d3d64aupz4bb5, child number 2 select * from TEST1 where k1 like N'Ł%' Plan hash value: 4122059633 Id Operation Name Rows Bytes Cost (%CPU) Time 0 SELECT STATEMENT 2 (100) * 1 TABLE ACCESS FULL TEST1 1 82 2 (0) 00:00:01
I have one issue My server is in france and it is in french timezone but when I query for sysdate it returns US time.
In '/etc/sysconfig/clock/' Zone= europe/paris UTC= true
echo $TZ variable is returning nothing.
sysdate = us time systimestamp= us time current_timestamp = french time current_date = french time dbtimezone= europe/warsove, sessiontimezone=+2.00( which is also europe timezone offset) tz_offset(dbtimezone)=+2.00, tz_offset(sessiontimezone)= +2.00 i.e europe os timezone= europe/paris.
This command "./emctl config agent getTZ" is also returning timezone as europe/paris
Also in "emd.properties" file "agentTZRegion" parameter is set to europe/paris
Oracle version= 11.2.0
Now I don't understand why this sysdate and systimestamp is returning "US time zone" while everything else is returning french time zone.
I am using pipelined functions. I've written a few with no problem this one seems to be giving an error when I am using techniques that appear very similar to ones that work.
I am doing this all in a package;
The type definition is;
TYPE SUSPECT_LINKAGES_FAC_RECORD IS RECORD ( PATIENT_ID TUMOR.TUMOR_PATIENT_ID%TYPE, CENTRAL_SEQ TUMOR.TUMOR_CENTRAL_SEQ%TYPE, MP_REVIEW_FLAG NUMBER(1), FACILITY_FLAG NUMBER );
The variable definition is;
OUT_REC SUSPECT_LINKAGES_FAC_RECORD;
The line with the error is;
PIPE ROW(OUT_REC);
This is the entire function;
FUNCTION GET_SUSPECT_LINKAGE_FAC_FLAGS RETURN SUSPECT_LINKAGES_TABLE PIPELINED AS CURSOR CURS_SUSPECT_LINKAGES IS SELECT * FROM TABLE(TUMOR_UTILITIES.GET_SUSPECT_LINKAGE_FLAGS()) order by 1,2,3 DESC; TEMP_REC SUSPECT_LINKAGES_RECORD; MATCH_COUNT NUMBER; OUT_REC SUSPECT_LINKAGES_FAC_RECORD;
[code].....
I get "PL-00382 expression is of wrong type" on both pipe row (out_rec); lines.
I have a strange problem with query with like and %.
When I run this script:
ALTER SESSION SET NLS_SORT = 'BINARY_CI'; ALTER SESSION SET NLS_COMP = 'LINGUISTIC'; -- SELECT * FROM NLS_SESSION_PARAMETERS; -- drop table test1; CREATE TABLE TEST1(K1 NVARCHAR2(80));
[code]....
When i change datatype to varchar2 this code work correct.
The execution plan:
PLAN_TABLE_OUTPUT ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SQL_ID d3d64aupz4bb5, child number 2 ------------------------------------- select * from TEST1 where k1 like N'Ł%'
[code]....
Note - dynamic sampling used for this statement (level=2)
I have a show/hide region of type HTML with empty region source which I use to show/hide a subregion (tabular form)because I don't like the layout of a show/hide region when it is shownthis worked without a problem in APEX 4.1.1
however in 4.2 the tabular form is just a couple of pixels widehave been playing around with grids but can't seem to find the right combination of settingsthe layout is messed up
I put the app on apex.oracle.com : workspace : xonixrs login/password : demo/demo
We have a bunch of jobs scheduled using DBMS_JOB (yes, I know I should be using DBMS_SCHEDULER, but we haven't migrated there yet). We are running Oracle 11.2.0.3 on Windows Server 2003 x64.
For example, we have a job that is supposed to run every Wednesday at 20:00. The Interval we have set up is "NEXT_ DAY (TRUNC(SYSDATE), 'WEDNESDAY')+20/24". This has been working as intended. Today (Monday), however, the job kicked off at 11:52. It was the wrong day and the wrong time.
I don't see anything weird in my alert log. Where else should I check to figure out why this job ran today?
JOB LAST_DATE LAST_SEC NEXT_DATE NEXT_SEC INTERVAL WHAT 293 1/7/2013 11:52:46 AM 11:52:46 1/9/2013 8:00:00 PM 20:00:00 NEXT_DAY(TRUNC(SYSDATE), 'WEDNESDAY')+20/24 ACQUISITIONS.WORKLOAD_STATUS_UPDATE_NOTIF;
I have an issue trying to execute some queries using a dblink. When i run any query with numeric fields only display 4 digit and int the source database the fields have 5 digit. The dblink work between ans MSSQL database to an Oracle Database
Example: MSSQL select cardnumber from card cardnumber 19121 19122
Oracle (with dblink) select cardnumber from card@dblink1 cardnumber 1912 1912
