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
through Difference between table Level, column Level ,row level constraints.
View 8 Replies View Related1. how can i impose a restriction on a table so that the data gets updated only specific period of time say 9 a.m. to 10 p.m.
2. Can i use bulk collect in dynamic sql? If yes how?
why 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.
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.
what is the difference on DBMS_STATS for table level and partition level , which will provide the best optimizer . If the table xxxx is partitioned from 1 to 10 ,then running gather stats on table xxxx as whole table level or partition level which will provide best result on the performance.
View 1 Replies View Relatedwhat command is used to create a table by copying the structure of another table including constraints ?
View 2 Replies View Relatedthe query, to get the foreign key constraints and related table fro give table.
View 2 Replies View RelatedHow do know all the constraints that are present on the data in a table in oracle ??
View 2 Replies View RelatedI 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)
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.
I 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 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
View 8 Replies View RelatedI want a query for all the columns in a table including there constraints and indexes of a "SCOTT" schema
View 7 Replies View RelatedI 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?
I have created table as below
create table emp_temp as select * from emp;
the table is created, but the constraints are not copied. Is there any way to copy all the constraints.
can you use alter table command to disable/enable constraints in a form if you can how, if you cant why
View 4 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
I have a data like,
1) manual_temp_master
auto_idbatch_id sec_idsec_id_type crrncy_cdcreate_Dt price_dt
------------------------------------------------------------------
11234ABC1CUSIPUSD14/05/201014/05/2010
23456XYZ1SEDOLGBP13/05/201013/05/2010
2)manual_temp_detl
auto_idbatch_id Price_bkt_cdscreate_Dtprice_date
---------------------------------------------------------
11234PS114/05/201014/05/2010
11234PS214/05/201014/05/2010
11234PS314/05/201014/05/2010
11234PS414/05/201014/05/2010
[code]....
I want to write a sql query which will fetch the data from manual_temp_master and manual_temp_detl.But from manual_temp_detl table, Price_bkt_cds columns should be displayed as columns. Like the should look like as below:
sec_idsec_id_type crrncy_cd COL_PS1 COL_PS2 COL_PS3 COL_PS4 COL_PS5COL_PS6price_date
--------------------------------------------------------------------------------------
ABC1CUSIPUSDPS1PS2PS3PS4PS5PS614/05/2010
XYZ1SEDOLGBPPS1PS2PS3PS4PS5PS613/05/2010
We have recently upgraded our DR environment from 9i to 11g. We have auditing turned on for 3 tables.
On 9i, AUD$ table size is 11G for 12 months and the upgraded 11g environment has 9G in 2 days....
Below is the sql statement we used to turn on auditing on these tables.
audit select,update,delete on audit_Test2 by session;
Opened SR with Oracle, but no proper response from them...
what changes we need to do in order to reduce the amount of audit data on these tables in 11g?
I want to put one check box to check all the check boxes.how can i do this?
View 5 Replies View RelatedWhy can't we create null constraint on table level?
View 20 Replies View RelatedI want to enable unconditional table level supplemental logging on unique index columns.
But Alter table tablename add supplemental log data (unique index) columns always;
gives error.If i omit always it is accepting but while it unconditionally log the unique index columns.
I have a script like this:
------------------------------------------------------------
DROP TABLE CON_TEST CASCADE CONSTRAINTS ;
CREATE TABLE CON_TEST (
IDI NUMBER(10,0),
USERID VARCHAR2(10),
PWD VARCHAR2(10),
NOTE VARCHAR(100)
)
----------------------
But i think if table CON_TEST doen't exist, an error message will appear. I know that in SQL Server we can check if table exists or not. So, i wonder if we can do that in Oracle?
By the way, is there any way to run a file script that contents TABLES, STORED, ... on a developed PC connect to oracle db server? (in case, i'm developing on PC, using Net Service Name to conect to Oracle DB Server)
I'm working on a feature that needs to check every table for data. At the moment I am roundtripping every time and running the query like this:
SELECT 1 FROM dual WHERE EXISTS(SELECT 'x' FROM table_name)
Is there a better way that allows me to get the result for all tables in one trip? I've tried a correlated subquery like this:
SELECT table_name, (SELECT 1 FROM dual WHERE EXISTS(SELECT 'x' FROM table_name) FROM all_tables
but I think that doesn't work because Oracle looks for a table called table_name rather than the value from the outer query.
How to check table properties? (desc only shows if it is null)If I do desc emp, it only shows the Employee description. But Doesnt tell if table is having primary key or not?
View 2 Replies View RelatedI created a table but I want to add the Unique check to it as I forgot to apply it to the table when I created it.Is it possible to make the field Unique after having created the table or do I have to drop the table and re-create it?
View 3 Replies View RelatedI am abolute new in PL SQL and I am working on following topic:
I have to check if an entry exists in a table.
- if it exists ...... do something
- if not ...... simply go on
I tried the following:
select Count(*)from products p
where p.productNbr = temp_Nbr
Group By t.produkt;
I fetched the result into a variable entries
if entries > 0 .....
MY problem is the following:
If there are entries (entries>0) --> it works
If there are no entries, entries is not 0 but 'no data found' --> crash
I cannot work with Exceptions because this all happens in a Loop which must go on in both cases!
