SQL & PL/SQL :: How To Drop Predefined Constraints In Oracle 10g
Aug 5, 2013How to drop the predefined constraints in oracle 10g, ALTER TABLE ECLIPSE.DEAL_STACKING_QUEUE DROP constraint SYS_C00302290; i got an error
View 2 RepliesHow to drop the predefined constraints in oracle 10g, ALTER TABLE ECLIPSE.DEAL_STACKING_QUEUE DROP constraint SYS_C00302290; i got an error
View 2 Repliesforms_ddl('ALTER TABLE ACCOUNT.VOC_DETAIL DROP CONSTRAINT FK_VOC_NO');
forms_ddl('ALTER TABLE ACCOUNT.VOC_MASTER DROP CONSTRAINT PK_VOC_MASTER');
forms_ddl('ALTER TABLE ACCOUNT.VOC_MASTER ADD CONSTRAINTS PK_VOC_MASTER primary key(VOC_NO)');
forms_ddl('ALTER TABLE ACCOUNT.VOC_DETAIL ADD CONSTRAINTS FK_VOC_NO FOREIGN KEY(VOC_NO) REFERENCES VOC_MASTER(VOC_NO)');
the trigger works very well but when i add some trigger between drop and create constraints then first step drop constraint sucessfully but 2nd trigger when create new constraints not working examples of trigger are as under:-
declare
s_number varchar2(7);
cursor masters is
select voc_type,voc_date,voc_no from account.voc_masterorder by voc_type,voc_date,voc_no;
abc masters%rowtype;
cursor detail is
select voc_no,ref_no from account.voc_detail group by voc_no,ref_no;
[code]....
Here, let me explain:
I have create a table with 8 million records and 2 different indexes using 2 different columns (columns name NUM1 & NUM2) on that table. First indexed column (NUM1) values have many different values (1,2,3... etc).
Second indexed column (NUM2) values have only 2 different values.
7999999 records values is same("A") and remaining one record values is different("B").
Query1:
select * from tbl where num1=val
Query2:
select * from tbl where num2='B'
I have compare explain plan both queries, but Query2 doesn't use predefined index. Why Oracle don't use my redefined index at column NUM2?
I am looking for a query which can select all existing Oracle predefined users and roles from db.I need it because one of my other scripts needs to know a given user name or role is a customised one or a system one.It looks like sys.user$ does not have any column that can be used to distinguish predefined users/roles.
I could find all the list of Oracle predefined users and roles by googling and hardcoded them in a query. I can also collect all the customised users and roles as well. However, I prefer a query which can automatically reports that and minimise the maintenance cost as new names and roles, either Oracle predefined or customised, may come out at anytime.
Why Oracle allowing the Built-in function names as column name in data base table
Ex :
create table to_char
(to_number number(8) , to_char char(20) , to_date date ,substr varchar2(20))
I have countries, sites, states tables (total 3) in database (i have user id and password to connect to this database).
every week i need to extract data from these tables into excel files and i need to save those in shared drive for team use.
Currently i am connecting to database every time running sql query and manually exporting that latest data to excel and saving that as excel files in (G: eamcommon) folder with specific name.
output format should be :
excel (.xls)
file names should - countries.xls,sites.xls,states.xls
server name : ap21
output location : G: eamcommon ( G is shared drive).
i heard that we could create batch file to do this task and also we could use oracle procedure to do this task. but not sure which one is the best option.
I want to create a store procedure to copy data from a source tables(which may not have any constraints defined) to a table which has primary key, foreign key and unique key constraints.
Any records which are rejected due to these constraints not being satisfied need to go another table.
Once the initial data load is done, these procedures need to be automated(through cron) to do the future incremental uploads in the same manner.
How to import constraints only from a dump file using Oracle data pump.
View 1 Replies View Relatedwe have our production database running on 11.2.0.2. I have a user table which has partitions. i would like to drop the partition and seeing weird issue:
The command to drop the partition i have is:
alter table SA.accounts drop partition dec_20111203 update global indexes;
Say after 10 minutes, the session is terminated and we are seeing the following: ORA-00028. We don't have a process that kills the session so we are trying to find the root cause why the session is being killed. what might be going on? also as an alternative - i was looking to do the following and want to know - if this works or not:
ALTER TABLE sa.accounts TRUNCATE PARTITION dec_20111203;
Then try to do the drop partition again.
i want drop all tables in oracle8
View 2 Replies View RelatedThrough an Oracle Apex application I need to create/drop a user/schema in another Oracle database. i.e., create/drop user remotely using an Oracle Apex application.
View 12 Replies View RelatedHow do know all the constraints that are present on the data in a table in oracle ??
View 2 Replies View RelatedI want to display columns along with their constraints using describe command
Is it possible?
SQL> desc dept;
Name Null? Type
----------------------------------------- -------- -------------
DEPTNO NUMBER(2)
DNAME VARCHAR2(14)
LOC VARCHAR2(13)
Basically, I need to fulfil the constraint:
"student cannot have more than 100 points"
I need to use a trigger to do this, but I don't understand how this would work.
Written in plain english I imagine it work work something like:
AFTER UPDATE
WHERE student.lessonid = lesson.lessonid
IF SUM(lesson.points) > 100 then ROLLBACK
lessonid is the only field relating the two tables.
--
How to fulfill that criteria, whether it be using triggers or not.
How to create any constraints other than NOT NULL in PLSQL RECORD.
View 5 Replies View RelatedIve created a scenario to what im trying to achieve here so ignore how its set-up attribute wise.
CREATE TYPE object_obj AS OBJECT (
obj_id NUMBER,
NAME VARCHAR2(20),
age NUMBER) NOT FINAL;
/
CREATE TYPE object_ext UNDER object_obj (
course_name VARCHAR2(20));
/
CREATE TYPE object_ext2 UNDER object_obj (
location VARCHAR2(20);
/
CREATE TABLE object_tab OF object_obj(obj_id PRIMARY KEY);
/
Now for the course_name i need to make sure it can only be on of these three values ('Science','Math','English'). I can't find a way to apply this constraint without making a table. But then that creates another issue of how to insert the data from the main supertype (object_obj) and i only want the object_tab table and view the subtypes via a select query.
When a table structure is copied from another table.What are the constraints copied and why?Unique keyPrimary keyForeign KeyCheckNot null.
View 10 Replies View RelatedAfter creating all the tables and the constraints, and inputting data to the table.. i want to delete everything. i try using drop table but it doesn't get rid of the constraints.
View 10 Replies View RelatedI was wondering with dba_constraints and i found unexpected result shown as below
select constraints_name, constraint_type from dba_constraints
constraint_name constraint_type
SYS_C00141 c
SYS_C00142 c
SYS_C00143 c
SYS_C00144 c
SYS_C00145 c
SYS_C00146 c
SYS_C00147 c
SYS_C00148 c
SYS_C00149 c
i jst want to know that what is this system generated constraints ?
I would like to print all the constraints on all columns given a table name.
Example:
SQL>@constrnts
Enter Table Name: emp
empno ---- Primary key
deptno ---- foreign key references Dept(deptno)
So I'm here creating some tables and if theres a guide where I can take a look at some Constraints Declarations , Mostly cause i have some values on the table that cannot be negative so i need to set constraints to be positive
View 4 Replies View RelatedExplain in detail about using constraints in creating tables.
View 3 Replies View Relatedwhy my code wont work. Am trying to create a constraint so that the only data that can be entered into the size field is a number between 4 and 15.
CREATE TABLE accommodation
(chalet_no NUMBER (3) PRIMARY KEY,
chalet_name VARCHAR2(20) NOT NULL,
size NUMBER CHECK (size >3) AND CHECK (size <16),
priceperweek NUMBER (4,2) NOT NULL);
Does seem to like line 4 of the code.
When we create a duplicate table, we use the below query:
create table table2 as select * from table1;
But table2 is created without any constraints inherited from table1.Can I know how can i create the table with all the constraints existing in parent table.
I want to truncate table partition but I'm getting error:
CODEORA-02266: unique/primary keys in table referenced by enabled foreign keys
because of table has a nested table. Currently this column is not in use so I could drop it, but I want to avoid it (table is huge). Is there another posibility to do truncate partitions in this table? ALTER TABLE ... SET UNUSED doesn't resolve the problem.
can a table level check constraints have conditional checking (if else clause or case conditional structures) and checks which are limited through something like a where clause which inside the table level check constraints.And can a table level check constraints refer to a column in another table column which should have a the same value.
View 1 Replies View RelatedI knew, how to enable or disable a constraint on a table.
>alter table <table_name> disable constraint <constraint_name>;
But if we know all the data is correct, it's better to disable all constraints to improve the performance.
We are allowed to Disable or Enable only a single constraint.
Enable or Disable All Constraints.
I have a table with 2 defined FK constraints which fires delete cascade events.
I want to deny deletions when the event is fired from one of the tables and permit them when the event is fired from the other table.
Is it possible?
Is any way to solve which table fires the event?
i am a beginner in SQL and want to create a table with the following constraints :
'orderno' should be primary key and start with o
'clientno' should be foreign key
'ordr date' is not null
'salesmanno' foreign key
'delytype' default value 'f' and possible value ( f or p)
'delydate' cannot be less than order date
'orderstatus' values ('in process.......)
here's my
create table sales_order(orderno varchar2(6) like 'o%' primary key,
clientno varchar2(6) foreign key references client_master(clientno),deldate date not null,dellyaddr varchar2(25),salesmanno varchar2(6) foreign key references salesman_master(salesmanno), delytype char(1) default 'f',billyn char(1),delydate date check > orderdate,orderstatus varchar2(10)check ('in process','fullfilled','cancelled');
how to copy data and constraints from one table to another table
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