SQL & PL/SQL :: How To Add A CHECK CONSTRAINT To Compare Info In 2 Tables
Jan 27, 2011
I need to alter a table to check that the data in a column is contained in a similar column in another table.
I have a STORES table and a STORE_REP table. Both tables have a column REP_ID.
I need to add a CHECK constraint into the STORES table to make sure that the info entered into its REP_ID column matches an entry in the STORE_REP table.
Both have a NUMBER(5) data type.
Will it make any difference if the REP_ID column in the STORE_REP table was originally created with a VARCHAR2(5) data type and was later converted to NUMBER(5), while the REP_ID column in the STORES table was created as NUMBER(5) when that table was created?
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Feb 8, 2013
what is the difference between assertions and check constraint?
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May 9, 2012
How can I modify the check constraint without dropping the already existing check constraint.
Example: alter table table_1 add constraint const_chk check (ATTRIBUTE7 in
('READ','UNREAD');
Want to add some TENTATIVE value for the already existing one. I could do that by dropping the constraint
ALTER TABLE table_1 DROP CONSTRAINT const_chk and modifying it later as
alter table table_1 add constraint const_chk check (ATTRIBUTE7 in
('READ','UNREAD','TENTATIVE');
Is it possible to do that with out dropping the constraint?
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Jul 5, 2012
i have a table for example :
CREATE TABLE RMD_2
(
"RMD_ID" NUMBER(10,0) NOT NULL ENABLE,
"ABB" VARCHAR2(16 BYTE),
"ACT_IND" VARCHAR2(1 BYTE) NOT NULL DISABLE,
CONSTRAINT "RMD_2_C1" CHECK (act_ind IN ('Y', 'N')) ENABLE
)
for column ACT_IND their is a check constraint RMD_2_C1 it should only accept either Y or N.
but, when ever i am inserting other values other than Y or N it is accepting it should not accept and it should have to give error message ORA-02293- : check constraint violated.
but it is not happening,it is accepting all other values even NULL value also.my requirement is this column should only accept either Y or N and it should not accept other values.
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Jul 10, 2012
I 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.
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Feb 14, 2013
I am using the below query to show the difference of data between two tables using minus operator.
teh result is correct, but is there a way can it show with a flag with new rows and updated rows something like "N" for new row and "U" for updated row.
select CURRENT_STG_GLACCTS.TABLE_NAME,
CURRENT_STG_GLACCTS.ACTIVE,
CURRENT_STG_GLACCTS.BUSINESSUNITID,
CURRENT_STG_GLACCTS.COST_CENTER,
CURRENT_STG_GLACCTS.GLACCT,
[code].......
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Dec 13, 2010
In 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]....
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Apr 21, 2010
I have table customer which contains a column CUSTOMER_FIRST_NAME
CUSTOMER_FIRST_NAME VARCHAR2(50)
What will be sql statement to add a constraint on the CUSTOMER_FIRST_NAME column of the CUSTOMERS table so that the value inserted in the column does not have numbers ?
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Jan 5, 2013
I Have Four Tables
1) Sal_master
structure is voc_no varchar2(7),voc_date date
2) sal_detail
structure is voc_no varchar2(7),item_code varchar2(10),quantity number(10,2)
3). delivery_master
structure is voc_no varchar2(7),voc_date date;
4) delivery_detail
structure is voc_no varchar2(7),item_code varchar2(10),quantity number(10,2)
I want to compare these four tables i have insert 10 rows in sal_master and sal_detail tables and 5 transaction in delivery tables how to compares 10 records of sal_master,detail with delivery_master and detail if not exist in delivery_master and detail tables then display only sal_master,detail records for example
Voc_no Sale Qty Deliver Qty Remaining Qty
S000075 10 5 5 if data not found from delivery master and detail then answer must be
S000075 10 0 10
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Oct 25, 2010
I have to compare 2 tables on a columns's value.The 2 tables have same column as Regn_no.I just need to have the result in True Or False from a Query if the particular value of Regn_no is found in both the tables.
Temporarily I using a bit different and not good query which is as follows:
select count(*) from tab1 where regn_no in (select regn_no from tab2) and regn_no = 'UP78AN7890';
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Jan 4, 2013
I have three tables:
A {op_id, op_name, .}
B {b_id, op_id, supplier_id, .}
C {c_id, op_id, op_id2, supplier_id, relation, .}
Table B and C have op_id which is foreign key from table A. In table A op_id is primary key, in table B b_id is primary key and in table C c_id is primary key. In table B supplier_id and op_id may have duplicate records. Now I want to add constraint so that if I delete records from Table B for op_id and if a relationship record exists for op_id in table C then it should not allow me to delete. Is it possible through referential integrity constraint ?
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Mar 5, 2012
i wanted to compare a date in one of my tables to sysdate. I have a table reservation and a field in it is Date Reserved From, i wanted to compare this to sysdate and returned the results
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Jun 4, 2012
I am working in a reporting project.We have different environments.After migration of data base script from one server to another we always need to crosscheck whether newly added columns have been properly migrated or not.
any database script to address the same thing. Last but not the least we have servers with TNS entries. how we can connect to different server while present in one specific server.
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Oct 19, 2010
My tables looks like this:
Desc Table A (account)
Account1_id
Account2_id
name,
empid
Table B (Bill )
BillNo
Advertiserid
agencyid
total vvalue
I need to pick up total value from table B where the unique combination of advertiser-Agency id is the same as the given account1_id -Account2_id combination in table A for each employee id.
In other words my output should be like
Empid | Account_id (should be same as advertiserid)| Account2_id (same as agencyid) | sum(total_value) for this adv-agency combination.....
objective: Get the total value from table B for each unique account1-account2 combination (advertiser-agency in other words) .
I am not sure if I should use a correlated subquery or how to handle the situation....Right now I am just checking the two columns separately like this:
select.......from a,b
where b.advertiser_id = a.account1_id and b.agencyid = b.account2id
Is it correct to do so? I have a feeling that I am missing something if I join them separately like this.
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Nov 1, 2013
is it possible to compare two tables with rowid? I want to put rowid in where condition...how can we do this?
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Jul 23, 2012
I want to compare two tables , and delete the common rows from the first table
Here is what i have done :
Create table test1(Test1C1 Number,
Test1C2 varchar2(50));
Create table test2(Test2C1 Number,
Test2C2 varchar2(50));
Insert into test1 values(1,'testdata1');
Insert into test1 values(2,'testdata2');
Insert into test1 values(3,'testdata3');
[code].......
it deletes all the records from Table test1. What should I modify here ? or should I write a different query ?
The desired contents in table test1 will be
2 testdata2
4 testdata4
6 testdata6
8 testdata8
10 testdata10
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Aug 4, 2011
i want a query/function/procedure to check recently updated columns/tables in a database...
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Aug 6, 2010
would want to check which tables located in which datafiles.
Tried with this command:
select B.FILE_NAME from dba_segments a, dba_data_files b
where a.header_file=b.file_ID and segment_name='TABLE_NAME'
Seems like it only shows 1 datafile. Some tables are large and i suppose it's resided in more than 1 datafile.
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Dec 25, 2007
i 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)
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Jul 30, 2011
I want to put one check box to check all the check boxes.how can i do this?
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Feb 20, 2013
i know the procedure "DBMS_SQL.DESCRIBE_COLUMNS" and the example,the example uses the "dbms_sql.open_cursor",not the ref cursor. so how to get the information of ref cursor by using describe_columns? or how to get the information of ref cursor by other?
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Mar 10, 2011
Is there a way to retrieve information about a table through an sql query? In particular I need to retrieve the size of some varchar columns.
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Feb 26, 2013
At my Workplace we have a large Orcle 11g Database with 30 different tables for production control issues.I try to get a couple of different information from the database, so i started with SQL Query's, but for this problem i was not able to write an working query.
In this case i have 2 tables:
Table 1:
ID ;ORDER_NR ;DESCRIPTION ;CREATE_DATE
1 ;A500236 ;CLEAN HOUSE ;02/20/2012
2 ;A623555 ;REPAIR CAR ;01/10/2012
3 ;A866944 ;MAINTAIN EQUIPMENT ;02/11/2012
Table 2:
ID;ORDER_NR;WO_STEP;STEP_DATE;EMPLOYEE
1;A500236 ;A;02/21/2012;W0010
2;A500239 ;F;02/21/2012;W0010
3;A500239 ;S;02/22/2012;W0027
[code]....
And the result of my Query should look like this:
ORDER_NR;DESCRIPTION ;CREATE_DATE;A_STAT_AGE;R_STAT_AGE;U_STAT_AGE
A500236;CLEAN HOUSE ;02/20/2012 ;5 ;3 ;1
A623555;REPAIR CAR ;01/10/2012 ;42 ;39 ;38
A866944;MAINTAIN EQUIPMENT ;02/11/2012 ;15 ;4 ;3
The age of my query result should be calculated from the Create date of the Order.I want to know 2 things, one is how old was the Order when they reached that status A, R and U.The second this ist, how long did the order remain on the stat A,R and U (and if possible all other status also)It could happend that not each order reaches each status, so it ca go directly from A to you in this case i want display a wildcard in this row/column
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Apr 19, 2010
For each keeper, show the number of cages cleaned by the keeper, show the average number of animals in the cages cleaned by the keeper and the total cost of the cages cleaned by the keeper."
The data table is shown on the picture.i75.photobucket. com /albums/i297/lovebipbo/SIT103.jpg.. I can learn and do some similar task myself
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Jan 26, 2007
How do I get my list of user session info? I thought there was a user_session_parameter view or something? Basically, I did an ALTER SESSION ... and want to verify it was set correctly.
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Jul 24, 2013
I want TO find out FIRST two employee joined IN A particular department WITH department information.THE relation IS basically FROM THE scott SCHEMA.I tried LIKE AS follows. IS there ANY other way FOR best PERFORMANCE.
SELECT deptno,dname,loc,
Max(Decode(rn, 1, hiredate))hiredate1,
Max(Decode(rn, 1, ename)) employee1,
Max(Decode(rn, 2, hiredate))hiredate2,
Max(Decode(rn, 2, ename)) employee2
FROM (SELECT d.deptno,dname,loc,hiredate,ename,Row_number() over(PARTITION BY e.deptno ORDER BY hiredate) rn
FROM dept d, emp e
WHERE d.deptno = e.deptno(+))
GROUP BY deptno,dname,loc;
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Mar 2, 2012
Im trying to generate a member procedure that allows the user to manual enter the required information via substitution variables. The manual INSERT INTO statements work but I cant seem to get it to work within a procedure.
Here is the code for the type, table andstandard insert:
CREATE TYPE toy_typ AS OBJECT
(toy_id NUMBER ( 5),
toy_name VARCHAR2 (20),
toy_cost NUMBER ( 4),
[code]...
the procedure complies but i get a warning error. When i also try to execute the code with either set values or substitutions i get either not enough or to many values error.
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Aug 2, 2010
I want to extract all OEM Job schedule information so that we can recreate the jobs on a different OEM should the need arise; e.g. Our network A OEM grid control system fails completely.We decide to connect all databases on network A to an OEM grid control system on Network B. Once all agents are switched over to network B we need to recreate and schedule all the OEM jobs that were running from the OEM on A to the new OEM.
Any sql that will get the job info from sysman.mgmt_jobs (and related tables) which I can run on a regular basis OR how to merge the mgmt_job.. tables from one oem into a second oem without corrupting the data already in the second oem ?
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Feb 21, 2011
I am having a little trouble retrieving info from my mock database.
here are my definitions:
response.setHeader("pragma", "no-cache");
response.setHeader("Cache-control", "no-cache, no-store, must-revalidate");
response.setHeader("Expires", "01 Apr 1995 01:10:10 GMT");
response.addHeader("Cache-Control", "post-check=0, pre-check=0");
[code]...
and here is my select statement.
ds = (DataSource) context.lookup(dSource);
conn = ds.getConnection();
stmt = conn.prepareStatement("select add_date, campus, name, leader from TABLENAME where id = ? order by xbbo_add_date");
stmt.setString(1, colleagueID);
result = stmt.executeQuery();
***basically I am trying to retrieve this info from my db, and list it out in a HTML table. I am writing this on a JSP page. Also, where i want the retrieved data listed, I am using for ex: <%=name%>
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Jun 24, 2012
If we insert a row in a database table then the new row stays at database buffer cache in SGA (until commit), right?. The target table is not affected (before commit). The new row is saved after commit.
I saw a concepts at Sybex oracle 10g oca book (Page 406) as follows:
" INSERT statements use little space in an undo segment; only the pointer to the new row is stored in the undo tablespace. To undo an INSERT statement, the pointer locates the new row and deletes it from the table if the transaction is rolled back. "
My question is If the row is not saved at table before commit, if we issue rollback then how oracle delete from table? I think the new row is deleted from database buffer cache in SGA.
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