SQL & PL/SQL :: Why Cannot Create Null Constraint On Table Level
May 19, 2011Why can't we create null constraint on table level?
View 20 Replies
ADVERTISEMENT
SQLPlus - How To Create New Table With Constraint
Mar 25, 2009I'm trying to create a new table which has a date field (date of birth) and I want to include a constraint which will not allow me to add values if they are over 21 years old. I'm using SQLPlus .
View 3 Replies View RelatedSQL & PL/SQL :: Create A Table With Constraint And Index
Apr 7, 2010I use Oracle 10.0.2.0.1.If I create a table with constraint key; after that I create an unique index key, I got an error. Does it mean when I create a table with constraint the unique index are automatically created and I could not create index key as I did as below?
create table test_const(ename varchar2(50) not null,
key_num number not null,
descr varchar2(100),
constraint constraint_test_const unique (ename, key_num));
create unique index test_const_idx on test_const
(
"ENAME","KEY_NUM"
)
tablespace tmp_data;
Error report: SQL Error: ORA-01408: such column list already indexed 01408. 00000 - "such column list already indexed" added [pre] tags by Sriram
SQL & PL/SQL :: Create Normal Primary Constraint During Table Creation
Mar 23, 2010i'm new to oracle environment.how can i specify NONCLUSTERD INDEX on Primary cloumn during table creation.By default it will create clusterd index but i need non-clusterd index on it.
I'm using following stmt to create normal primary constarint during table creation,
CONSTRAINT PKFORM_PROPS PRIMARY KEY (FORM_PROPS_PK) USING INDEX TABLESPACE DB123_INDEX
how can i change the above query, so that it should create NONCLUSTERED INDEX on Primary key column.
SQL & PL/SQL :: Unique Constraint When 1 Column Is Not Null
Jun 15, 2012I have 3 columns in a table: colX, colY, colZ.
Trying to find a way to prevent duplicates with these, but only if colX is not null.
For example, if there are already values for: colX = 1, colY = 1, colZ = 1
then:
Allowed: colX = null, colY = 1, colZ = 1
Not allowed: colX = 1, colY = 1, colZ = 1
I can't create a unique constraint on these columns because there are many null values for column colX, and as mentioned, when colX is null, colY and colZ can be any values.
I also tried using a before insert trigger to find duplicates before posting and raise an error if found, but this causes an ORA-04091 mutating error since the trigger in the table is referencing itself to check for duplicates.
Also, I know there is something called a function based index, but I cannot use those with my code, so I need another solution if possible.
SQL & PL/SQL :: Add A Not Null Constraint On A Collection For Testing?
Nov 19, 2010I am trying to add a not null constraint on a collection for testing. It not allowed null values as below
pointers@ORCL> declare
2 type test_type is table of number not null;
3 t_test test_type;
4 begin
5 t_test := test_type(2,4,null); --null is being added
6 dbms_output.put_line('Type variable is initialized and the first element value is '||t_test(1));
[code]....
But what I observed is, i can add, null elements by using 'EXTEND' routine though 'not null' constraint is used for that type.
The below is the example.
pointers@ORCL> ed
Wrote file afiedt.buf
1 declare
2 type test_type is table of number not null;
3 t_test test_type;
4 begin
5 t_test := test_type(2,4);
[code]....
Creating Unique Constraint That Excludes Null
May 22, 2013I have a table where I want user to fill in unique values for a field which is easy to do.
Problem is sometimes the values can be null so an ordinary unique constraint does not work because multiple null records. Is there a way of validating only non null values to ensure all data entered that is non null is unique?
SQL & PL/SQL :: Is NOT NULL Needed If A CHECK Constraint Is On Column
Dec 13, 2010In the below code, do I need the 'NOT NULL' after the 'state char(2)'? I am guessing that I do not need it since I have the CHECK constraint on the column.
CREATE TABLE employee(
id PRIMARY KEY,
first varchar(20) NOT NULL,
middle varchar(20),
[code]....
SQL & PL/SQL :: Entering Values As Not Null Constraint To Column In Oracle Without Disturbing Old Records
Jul 1, 2013previously i set null constraint to the column and creating some rows and need to change new entering values as not null constraint to the column in oracle without disturbing the old records. how can I do that.
View 5 Replies View RelatedSQL & PL/SQL :: DBMS_STATS For Table Level Vs Partition Level
Nov 17, 2010what 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 RelatedGet Table Name / Constraint Name / Constraint Type With Join Processes In String Type
Dec 25, 2007i want to get table name, constraint name, constraint type with join processes in string type. this is what i want: alter table tablename add constraint constraintname constrainttype(columnname)
View 1 Replies View RelatedHow To Create Check Constraint That Act As Foreign Key
Jul 10, 2012I have table EMP & DEPT.
Can you give me sample "check" constraint so that when I enter an EMP (with status='active') without matching DEPT entry, the process will fail?
It will allow to enter EMP with status='inactive' only even if no matching DEPT entry. So foreign_key will not apply.
SQL & PL/SQL :: Create A Row-level Trigger Named TRG_PROB_FEE?
Dec 3, 2010I'm trying to create a row-level trigger named TRG_PROB_FEE to run before insert or update of the problem fee attribute on the problem table. If the associated DML command would result in a null for the problem fee(prob_fee), then get the value of the problem fee attribute from the associated contract (con_probfee) to use as the value for problem fee (prob_fee) in the Problem table.
CREATE OR REPLACE TRIGGER TRG_PROB_FEE
BEFORE INSERT OR UPDATE OF PROB_FEE ON PROBLEM
FOR EACH ROW
BEGIN
IF :NEW.PROB_FEE IS NULL THEN
SELECT CON_PROBFEE
INTO PROBLEM
FROM CONTRACT
WHERE CON_PROBFEE = :NEW.PROB_FEE
END IF;
END;
/
PL/SQL :: Create Constraint That Checks To Ensure (Year) Entered Is Less Or Equal To Current?
Aug 6, 2013, I'd like to create a constraint (when creating a table) that checks to ensure that the 'Year' entered is less than or equal to the current year (based off SYSDATE). Per the code below, I keep getting the same error, "missing right parenthesis". I've spent more than an hour trying different ways to get this to work, but I've been failing miserably. I am using Oracle 11g Express.
CREATE TABLE TEST (Name VARCHAR2(7) PRIMARY KEY, Year NUMBER(4), CONSTRAINT TEST_YEAR_CK CHECK (Year <= (TO_NUMBER(TO_CHAR(SYSDATE, 'YYYY')))FROM DUAL);
*ERROR at line 4:ORA-00907: missing right parenthesis
Primary Key Does Not Treat NULL Value - Can Create Statement?
Feb 21, 2012Create table X(
var1 varchar2(20) null,
var2 varchar2(20) not null,
constraint pk_var1 primary key(var1)
We all know Primary key doesnt treat NULL as a value. But the above statement is fine to be executed without problem.
Is this something to be highlighted? or am i not right in understanding 'var1 varchar2(20) null '?
SQL & PL/SQL :: Primary Constraint On Table Affecting Procedure To Insert Rest Of Rows In Table?
Jun 12, 2012primary key constraint on transaction_dtl_bk is affecting the insertion of next correct rows.
CREATE OR REPLACE PROCEDURE NP_DB.san_po_nt_wnpg_1 (
dt DATE
)
IS
v_sql_error VARCHAR2 (100); -- added by sanjiv
v_sqlcode VARCHAR2 (100); ---- added by sanjiv added by sanjiv
[code]...
Creating Table With A Constraint?
Oct 16, 2006how to i insert a constraint of words into the table example below.I am new to this stuff man.
Create table Orders
(
orderID Number(8) Primary Key,
orderDate Date Not Null,
methPmt Varchar2(10),
custID Number(5),
orderSource Number(2),
Foreign Key(custID) Reference Customer(custID),
Foreign Key(ordersource) Reference OrderSource(ordersource)
);
The catch is I am required to enter a constraint of the methPmt will only take values of "CASH", "CREDIT" or "CHEQUE" only.
How am I suppose to enter this constraint value into the creation of this table?
SQL & PL/SQL :: Find Constraint Name Of A Table
Dec 24, 2010I want to know constraint name of a particular table if it exists.Here are the queries that i tried to find the constraint name of a particular table but the results were 'no rows selected'.
Queries:
select constraint_name from user_cons_columns where table_name='x';
select constraint_name from user_constraints where table_name='x';
Add Constraint Default Value For Table Column With Name?
Oct 26, 2009I would like to add a constraint "default value" for a table column, with a name.
I know how to do it for a constraint "not null" : ALTER TABLE tablename MODIFY columnname CONSTRAINT constraintname NOT NULL;
But I don't know how to do it for a constraint "default value".How can I do ?
SQL & PL/SQL :: Modifying Existing Constraint On Table
Apr 1, 2013Can we modifying the existing constraint on table?I have table level UNIQUE constraint on 3 columns of table.I need to modify the UNIQUE constraint to 2 columns? Instead of dropping/recreating the constraint, is there any option to modify the existing constraint
Ex
CREATE TABLE TEST_CONST(NUM1 NUMBER , NUM2 NUMBER , NUM3 NUMBER , UNIQUE (NUM1 ,NUM2,NUM3)); ;
SELECT * FROM USER_CONS_COLUMNS UCC WHERE UCC.TABLE_NAME LIKE 'TEST_CONST';
ALTER TABLE TEST_CONST MODIFY CONSTRAINT SYS_C0025132 UNIQUE(NUM1,NUM2);
ORA-00933: SQL command not properly ended
Third statement is not executing fine .
SQL & PL/SQL :: Temporary Disable All Constraint In Particular Table?
Jan 7, 2012i have one table HR.employees
SQL> desc hr.employees
Name Null? Type
----------------------------------------- -------- ----------------------------
EMPLOYEE_ID NOT NULL NUMBER(6)
FIRST_NAME VARCHAR2(20)
LAST_NAME NOT NULL VARCHAR2(25)
EMAIL NOT NULL VARCHAR2(25)
PHONE_NUMBER VARCHAR2(20)
HIRE_DATE NOT NULL DATE
JOB_ID NOT NULL VARCHAR2(10)
SALARY NUMBER(8,2)
COMMISSION_PCT NUMBER(2,2)
MANAGER_ID NUMBER(6)
DEPARTMENT_ID NUMBER(4)
SQL>
in this table i want to temporary disable all constraint in this employees table
SQL & PL/SQL :: Possible To Get Exact Name Of Constraint From Any System Table
Sep 1, 2010There was one constraint define on the column of table that the value of column should be in range of 100 to 200. Some one has deleted the constraint. Is it possible to get the exact name of constraint from any system table.
View 7 Replies View RelatedSQL & PL/SQL :: Import With A Default Constraint On Table?
May 28, 2012I have a table as below. This table is not partitioned.
create table t1
(
d1 date,
n1 number not null
);
[Code]....
I took an export dump of the above table and after that I renamed the table t1 to t1_old. Then I recreated the table as below with a default constraint on d1 field.
create table t1
(
d1 date default to_date('01/01/1100','DD/MM/YYYY','NLS_CALENDAR=GREGORIAN'),
n1 number not null
[Code]....
But the problem here is the data import is taking too much time than what I expected. I can't afford a maxvalue partition here as of my DBA team mentioned if you add maxvalue partition adding partition later in a stage is difficult on this table
apply in this scenario and make the import faster. I am using oracle 10.2.0.1.0 version.
SQL & PL/SQL :: Drop Index Which Has Constraint On Table?
May 18, 2011How to drop an index which has a constraint on the table?
while droping the index on the table wheather i should remove the
constraint or disable the constraint or without droping the
constraint
PL/SQL :: How To Get Constraint Name / Table And Column Names
Sep 12, 2012I am a junior DBA. I want to check how many columns are under PRIMARY KEY constraint.
I used dba_constraints view. Please find below details.
SQL> select OWNER,CONSTRAINT_NAME,CONSTRAINT_TYPE,TABLE_NAME from dba_constraints
2 where TABLE_NAME='DSET_PRODUCT_S';
OWNER CONSTRAINT_NAME C TABLE_NAME
------------------------------ ------------------------------ - ----------------------------------------
SCOTT SYS_C10202456 C EMPLOYEE
SCOTT SYS_C234576 C DEPT
SQL & PL/SQL :: Local Unique Constraint On Partition Table
Aug 2, 2011I have created a table below, my TL asked me to create a local unique constraint for the below table.
I went through all sites and could not find the correct solution, how to create LOCAL UNIQUE CONSTRAINT ON SUB PARTITION TABLE and LOCAL UNIQUE INDEX ON PARTITION TABLE. Creating Local Unique constraint should take care of creating local unique index creation.
Unique key columns are DET,GDS,ARRIVE_DT
CREATE TABLE SUB_PAR_TAB
(
ID VARCHAR2(100) NOT NULL,
REGION VARCHAR2(40) NOT NULL,
SOURCE VARCHAR2(80) NOT NULL,
DET VARCHAR2(80) NOT NULL,
GDS VARCHAR2(40) NOT NULL,
ARRIVE_DTDATE,
SYS_SOURCE VARCHAR2(25) ,
[code]........
SQL & PL/SQL :: Multiple Of Same Constraint Keys In Parent Table?
Jun 9, 2011I used
SELECT USER_CONS_COLUMNS.CONSTRAINT_NAME,
COLUMN_NAME,
CONSTRAINT_TYPE,
[Code]...
to create a parent key table sort of thing, but for some reason there are rows that display multiple times
CONSTRAINT_NAME COLUMN_NAME CONSTRAINT_TYPE R_CONSTRAINT_NAME DELETE_RU
-------------------- -------------------- --------------- ------------------------------ ---------
SYS_C00135225 PATIENT_STATUS C
SYS_C00135226 BALANCE C
SYS_C00135227 PATIENT_STATUS C
PK_PATIENT PATIENT_NUMBER C
[Code] ..........
is it something to do with the join command
SQL & PL/SQL :: ORA-12014 / Table CDA_FUNCTION Does Not Contain A Primary Key Constraint
Dec 9, 2010I am trying to create snapshot using the following script but I am getting the error
ERROR at line 22:ORA-12014: table 'CDA_FUNCTION' does not contain a primary key constraint
SQL> CREATE SNAPSHOT MEDA.cda_function
PCTFREE 10
PCTUSED 40
MAXTRANS 255
TABLESPACE users
STORAGE (
INITIAL 40960
[code]....
I check in dba_constraint data dictionary table for the constraints in the table CDA_FUNCTION.it is showing as follows
owner constraint_name constraint_type table_name search_condition status deferrable deferred validated generated
WEDA SYS_C0032310 C CDA_FUNCTION (LONG) ENABLED NOT DEFERRABLE IMMEDIATE VALIDATED GENERATED NAME
WEDA SYS_
Enterprise Manager :: What Is The Difference Between Create External Table Vs Create Table
Apr 29, 2011What is the difference between CREATE EXTERNAL TABLE Vs CREATE TABLE .?
Is CREATE EXTERNAL TABLE included in CREATE TABLE?
SQL & PL/SQL :: Row Level To Column Level Data Transposition?
May 14, 2010I 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