How is naming Integrity Constants useful? See example below:-
create table incrr
(incrid number(4) constraint incrid_pk primary key,
incrdate date not null,
incramt number(8,2) not null
);
In the above if I don't use incrid_pk it also works.Then what is the use of incrid_pk ?
I am new to plsql, and I am working with re-creating existing stored procedures which was written like 10 years back with a lot of constant values used and hard coded values used. I am trying to give a new look to those SP and also to make it easier to understand.
would like to replace those constants which is defined into SP with "record" datatype used by plsql.
e.g
AccountType CHAR(3) := 'LMN';
ValueType NUMBER := 34;
Reasonsign CHAR(3) := 'er';
To
[code]...
And using this Constant_values type in places where the constants are refered.
We have a package that contains mostly constants like:
c_flag_true CONSTANT CHAR(1) := 'Y'
When I try to reference it in these constants in an adhoc query it doesn't work:
SQL> select * from FINANCIAL_BATCH_STATUS_HISTORY where active_flag = constants_pkg.c_flag_true;
select * from FINANCIAL_BATCH_STATUS_HISTORY where active_flag = constants_pkg.c_flag_true
ORA-06553: PLS-221: 'C_FLAG_TRUE' is not a procedure or is undefined
Is there a simple solution to make the reference work?
I'm trying to follow a table naming conventions where the table names are in plural.
Which one according to you is the correct one?
- reservation_headers
- reservations_header
- reservations_headers
I just want to get into designing database in the correct footing at least.
DB: 11.2.0.3 & OS: RHEL5 Easy Connect Naming method enhances the host naming method by allowing for a port and service specification. My question is does Oracle 11g support Host naming method?
View 4 Replies View RelatedI can login to my database using SQL>sqlplus sys/sys as sysdba
but it doesnot work when i do
SQL>sqlplus sys/sys@nocdb as sysdba
ERROR:
ORA-12518: TNS:listener could not hand off client connection
my tnsnames.ora looks like this
NOCDB =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = Abhishek-PC)(PORT = 1522))
[code]....
is this (PORT=54460) causing the problems...i think it should read 1522 as in my listener.ora.
I've got a oracle install [non production, but devel] that is a tad screwed up. We moved the box and as a result changed the hostname to match the new naming scheme. Ever since then OracleEM has been somewhat confused. In anycase, I don't want OEM anyways now. Plan is to learn SQLplus.
That being said I've used emctl to shut down dbconsole, but it seems there is something somewhere that keeps restarting 2 processes that like to sit around and take up 100% cpu. I can kill them, they stay dead for a few hours then crop up again.I was able to find this out about them:
[jmacdonald@devoracle ~]$ ps auxwww|grep 2033
oracle 20334 84.1 12.3 994052 255824 ? Rs Aug10 1740:43 ora_j000_orcl
oracle 20336 80.9 14.1 998140 294288 ? Ss Aug10 1674:18 ora_j001_orcl
And then this, which caused me to conlucde its OracleEM:
SELECT sess.process, sess.status, sess.username, sess.schemaname, sql.sql_text
FROM v$session sess,
v$sql sql
WHERE sql.sql_id(+) = sess.sql_id
AND sess.process in (20334,20336)
[code]...
Can I apply Referential Integrity to only selected rows of a particular column? This is the reference key to the primary key to another table. But, the issue is, this reference column is not having mandatory data for all the rows. So, whenever this is null, I dont want it to be referred by parent table.
View 4 Replies View RelatedReferential Integrity is very important in Oracle database. Consider a scenario where constraints were applied to a database but never enforced on. Only application code was leveraged over the past 1 year to manage this logic.
Over the course of the year there might have been lot of Row Violations which might have led to Data Inconsistency Issues.Do we have a Script, Tools in Oracle which flag all row level violations with referential integrity now being turned on.
We are attempting to configure/use OEM (Oracle 10.2.0.4) on Solaris, and when logging in to OEM we are directed to the Database Down page, stating Enterprise Manager is unable to connect to the database instance, but showing all the components as up/open. After checking the log, I found the following error:
IO exception: Unknown Encryption or Data Integrity algorithm
I checked the settings in emoms.properties and compared the encryption parameters to those in our SQLNet file, and all match up. We are NOT using Grid Control, just db control connecting to 1 instance.
What could be the reason for Such Errors.?OCR Integrity was Successful on one node and on the cloned node it was failed.
View 8 Replies View RelatedWhat is the best practices to maintain aggregate columns? Suppose I have the following 2 tables:
DROP TABLE TEST.ORDERS_DET_T;
DROP TABLE TEST.ORDERS_T;
CREATE TABLE TEST.ORDERS_T (
ID NUMBER NOT NULL PRIMARY KEY,
ORDER_CODE VARCHAR2(100) NOT NULL,
[code]....
I want the following test script to act int the way, described in comments. Basically this means that the sum of TEST.ORDERS_DET_T.ORDER_DET_SUMA must be equal to TEST.ORDERS_T.ORDER_SUMA after transaction commits.
INSERT INTO TEST.ORDERS_T(ID, ORDER_CODE, ORDER_SUMA) VALUES(1,'FRUITS',100);
INSERT INTO TEST.ORDERS_DET_T(ID, ORDERS_T_ID, ORDER_DET_CODE, ORDER_DET_SUMA) VALUES(2,1,'APPLES',40);
INSERT INTO TEST.ORDERS_DET_T(ID, ORDERS_T_ID, ORDER_DET_CODE, ORDER_DET_SUMA) VALUES(3,1,'PEAT',60);
COMMIT; --SHOULD BE OK, 40+60=100
[code]....
P.S. Creating views based on ORDERS_T and ORDERS_DET_T are not an option, if the user would still be allowed to modify data in tables (as in test scenarios). This is because of current business situation, where the client has 2 teams (outsourcing for back-office solution and insourcing for web solution) that are accessing/modifying the data in the same tables.
Can I apply Referential Integrity to only selected rows of a particular column? This is the reference key to the primary key to another table. But, the issue is, this reference column is not having mandatory data for all the rows. So, whenever this is null, I dont want it to be referred by parent table.
no, and it makes no sense to do so either
We have an appointment form in our HIS, where patients take telephonic appointment. That time they may not know their user id given by hospital. So, it remains blank & name is entered manually. But if the user-id is entered, it must fetch patient name from the master.
The candidate key must be unique within its domain.The candidate key can not hold NULL values.
ALTER TABLE HLTHCHKAPPOINTHD ADD (
CONSTRAINT SYS_C007145
FOREIGN KEY (N_PATIENTMR_ID)
REFERENCES MRREGISTRTNHD (N_PATIENTMR_ID));
MRREGISTRTNHD is a patient master & has a primary key named N_PATIENTMR_ID.
HLTHCHKAPPOINTHD is a appointment table & has a foreign key named N_PATIENTMR_ID which references N_PATIENTMR_ID of MRREGISTRTNHD.
Also, N_PATIENTMR_ID of HLTHCHKAPPOINTHD is not a unique key & it can contain null values also. I want to define constraint or any other method such that only the not null values are referenced to the master i.e. it should validate in the master. And null values should skip this reference.
Now, what happens is due to this constraint, when I'm trying to edit & update the rows having null value in N_PATIENTMR_ID, it gives the following error.
ORA-02291: Integrity constraint (SYS_C007145) violated - parent key not found
So, can I give some condition in the above constraint saying, apply this constraint to table HLTHCHKAPPOINTHD only having the not-null values in N_PATIENTMR_ID coulmn?
I've an Oracle Table which has around 300 columns. I've a requirement to split this single table into two tables (150 columns each) by a foreign key.
Now I want to know how to maintain the data integrity while I insert the data into two tables. which means each table should have equal number of rows as we insert the 300 columns data into tables each at a time.
URL....Topic: The Execution Model for Triggers and Integrity Constraint Checking
Oracle uses the following execution model to maintain the proper firing sequence of multiple triggers and constraint checking:
1.Run all BEFORE statement triggers that apply to the statement.
2.Loop for each row affected by the SQL statement.
a.Run all BEFORE row triggers that apply to the statement.
b.Lock and change row, and perform integrity constraint checking. (The lock is not released until the transaction is committed.)
c.Run all AFTER row triggers that apply to the statement.
3.Complete deferred integrity constraint checking.
4.Run all AFTER statement triggers that apply to the statement.
I got following error on Oracle 10.2.0.4.0 RAC on solaris 10
Oracle clsomon failed with fatal status 12.
Oracle CRS failure. Rebooting for cluster integrity.
I think this problem in 11g but I am using 10g.
i have an understanding about Integrity constraint checking and the trigger execution sequence, which i decsribe below.
Integrity constraint are restiction on DML operation performed by the user. When a user deletes or updates or inserts a rows in a table then oracle performs certain checking to see that the data which is effecting the row abide certain rules. There are certain per-defined set or rules that can be applied on a table such as PRIMARY KEY, FORIEGN KEY, UNIQUE, CHECK, NOT NULL etc, user-defined rules can be applied on tables by using Triggers.
In both the cases the Integrity Constraint Checking is deferred until the complete execution of the statement. All rows are inserted first, then all rows are checked for constraint violations.
So when i see the trigger execution model the following steps are performed by oracle, Oracle uses the following execution model to maintain the proper firing sequence of multiple triggers and constraint checking..This is what the Oracle Documentation Library says [extract from Oracle Database Concepts 10g Release 1 (10.1)].
1. Run all BEFORE statement triggers that apply to the statement.
2. Loop for each row affected by the SQL statement.
a.Run all BEFORE row triggers that apply to the statement.
b.Lock and change row, and perform integrity constraint checking. (The lock is not released until the transaction is committed.)
c.Run all AFTER row triggers that apply to the statement.
3.Complete deferred integrity constraint checking.
4.Run all AFTER statement triggers that apply to the statement.
As for step 3 here the checking of the constraints for the statement is performed which where defered till the complete execution of the statement, then what is done in step 2b? what constraints are checked there?
I install oracle 11g2 on centos, in prerequisite checks step ,oracle database show this failed "Oracle Restart integrity Failed", I don't know what should i do ?
View 2 Replies View RelatedHow to control internal integrity (lack of self-reference keys in an index) without using regular validation and rebuilding ?
I'm using 10.2.0.5.
i am running the query from which i am getting below mentioned error how can i find the record which is not there in parent table ora02291 integrety constrain violated and parent key not found.
View 11 Replies View RelatedI am using Datapump import using database link to import an entire schema from another Server but it gives issues with constraints.I tried to first only import the metadata and then disable the constraints and import data and enable constraint but in this case the temp tablespace keeps filling up and i am out of space. Is there any method to do a full import including constraints and indexes.
View 7 Replies View RelatedAm creating a table based on some integrity constraints, but it's not working.
CREATE TABLE member
(
member_id NUMBER(10),
last_name VARCHAR2(25) NOT NULL,
first_name VARCHAR2(25),
[code],,,
Error:
Error report:
SQL Error: ORA-02270: no matching unique or primary key for this column-list
02270. 00000 - "no matching unique or primary key for this column-list"
*Cause: A REFERENCES clause in a CREATE/ALTER TABLE statement gives a column-list for which there is no matching unique or primary key constraint in the referenced table.
*Action: Find the correct column names using the ALL_CONS_COLUMNScatalog view
OS=Redhat 5
Oracle=11gr2
Grid=11gR2
I am trying to install Oracle Database 11gR2 database on Oracle Grid 11gR2. I successfully installed Grid without errors. However, when installing the database, I got an OLR Integrity error during the prerequisit Check
OLR Integrity - This test checks the integrity of OLR on the local node.
Expected Value : n/a
Actual Value : n/a
List of errors:
- Permissons of file
"/u01/app/oracle/product/11.2.0/grid/cdata/localhost/localhost.olr" did not match the expected value. [Expected = "0600"; Found = "0660"]
- Cause: Cause of Problem Not Available
- Action: User Action Not Available.
I have Oracle 9i and yesterday I wanted to create new DB(datebase) but I couldn't did it.
In Database Configuration Assistant chose Create database then New database. Used configuration by default. On 92% I got this error
Quote:ORA-02291: integrity constraint (SH. COSTS_PRODUCT_FK) violated - parent key not found