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 RepliesExplain in detail about using constraints in creating tables.
View 3 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
After 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 want to find out the columns on which primary constraints are enabled.Which view must I use to check this.
View 2 Replies View RelatedI just want to list and group all my tables that are linked together by constraints. I just want my tables to be able to be listed together as one particular database. my tables are , CUSTOMER, ORDER_INFO, ORDER_LINE, PRODUCT. They're all linked together by way of constraint and I want to list and print them all together as one DB. HOW DO I put them all in one schema and then also list them all together and print/illustrate them as one. also, I tried to import them into their own scheme but i ran into a series of probs regaurding the .dmp file being read.
View 2 Replies View RelatedI have created a softlink to a data file orig_file.dat using the command ln -s orig_file.dat orig_file_link.dat
Now is it possible to create an external table using this linked file orig_file_link.dat
I am using this linked file to minimise the space usage because every month we get different data files and external table creation is done as a batch job copying the data file to another file whenever a new data file arrives. External table is created with the new file. so i need to check whether it is possible with the linked file instead of copying the file.
I am trying to create a new user who will be able to do a delete from all of the tables that only I MYSELF created. I created my user and granted access but realized I may not have done it right..
is it simply SQL>grant delete on <TABLESPACE> to <new user>; ? or do i need to specify the grant the delete on my tablespace to new user?
I am facing a problem while creating a program using oracle forms.These two table i am using in creating following program .
SQL> desc electricity ;
Name Null? Type
----------------------------------------- -------- ----------------------------
ID NOT NULL NUMBER
NAME VARCHAR2(40)
PREV_READING NUMBER(20)
PRESENT_REDAING NUMBER(20)
TOTAL_UNITS NUMBER(30)
AMOUNT NUMBER(30)
[code]....
What i want that whenever user writes a value in "PRESENT_Reading" Column then it stores value in "ID table" .For example if current month is July ,Then when user write a value in present Reading column ,it stores it in JULY Column of Id table ..i Write following trigger (Key_commit) On present_reading Column .
if sysdate=to_char(sysdate,'MON','Jan') Then
:electricity.PRESENT_REDAING := :ID.Jan ;
elsif
sysdate=to_char(sysdate,'MON','FEB') Then
:electricity.PRESENT_REDAING := :ID.Feb ;
elsif
sysdate=to_char(sysdate,'MON','MAR') Then
:electricity.PRESENT_REDAING:= :ID.MAR ;
But when i run my form it does not work ,and raised unhandled Exception .I think i need to change some properties of PRESENT_READING column of electricity table.
I'm having trouble with a little assignment.
"Create a view named vuPassFailRate that will show the pass rate and fail rates of each test."
I have a table named Test_ID containing the following columns:
TEST_ID
TEST_NAME
PASSING_GRADE
And another table named Test_History containing the following columns:
TEST_ID
STUDENT_ID
SCORE
I'm assuming i have to create an inline view, and to work out the pass/fail rates i need to do something along the lines of (For pass rate) Where SCORE is greater than or equal to PASSING_GRADE, and TEST_ID equals TEST_ID, divide by a count of SCORE and multiply by 100. I just cant work out the nested select statements, and work out the formula using two columns in two tables.
I have been staring at this problem for so long now i cant see the wood for the trees.
SQL> connect sys as sysdba
Enter password:
Connected.
SQL> grant dba to temp;
Grant succeeded.
SQL> connect temp
Enter password:
Connected.
SQL>
SQL> create or replace procedure tempproc
2 is
3 begin
4 execute immediate 'create table temp_table(a varchar2(10))';
5 end;
6 /
Procedure created.
SQL> exec tempproc;
BEGIN tempproc; END;
*
ERROR at line 1:
ORA-01031: insufficient privileges
ORA-06512: at "TEMP.TEMPPROC", line 4
ORA-06512: at line 1
SQL>
SQL> declare
2 begin
3 execute immediate 'create table temp_table(a varchar2(10))';
4 end;
5 /
PL/SQL procedure successfully completed.
SQL> desc temp_table;
Name Null? Type
----------------------------------------- -------- ----------------------------
A VARCHAR2(10)
Why am I not able to create a table from procedure using execute immediate?
This is just for learning purposes. What if I would like to create my own materialized view utilizing only tables and a job.
View 28 Replies View RelatedI'm having trouble with a little assignment. "Create a view named vuPassFailRate that will show the pass rate and fail rates of each test." I have a table named Test_ID containing the following columns:
TEST_IDTEST_NAMEPASSING_GRADE
And another table named Test_History containing the following columns:
TEST_IDSTUDENT_IDSCORE
I'm assuming i have to create an inline view, and to work out the pass/fail rates i need to do something along the lines of (For pass rate) Where SCORE is greater than or equal to PASSING_GRADE, and TEST_ID equals TEST_ID, divide by a count of SCORE and multiply by 100. I just cant work out the nested select statements, and work out the formula using two columns in two tables. I have been staring at this problem for so long now i cant see the wood for the trees.
I have a database in my Windows 2003 server and oracle 9i installed on it working find. we are using our client pc on the network to access the database on the server through our application program which is build under java swing.I want to create a client application which will use the browser to access the database only for generating reports.
View 1 Replies View RelatedI created a mv for one of the partitioned tables but on viewing the mv capabilities it still shows PCT is set to 'N'.
create materialized view MV_summary_SEC
refresh fast
start with sysdate
nEXT SYSDATE + 1/24
enable query rewrite as
[code]....
If i remove the sub query and create the mview like this,then PCT is enabled.
create materialized view MV_summary_SEC
refresh fast
start with sysdate
nEXT SYSDATE + 1/24
enable query rewrite as
select PERIOD , SUM(SUM_WEB_HITS)
from summary ,date_table
where PERIOD >= DATE_TABLE.CUR_DATE
group by PERIOD
Is it simply because oracle doesn't support PCT if the definition contains subqueries ?
I want to do a tree view based on the following tables in APEX:
create table plattform (
id number,
name varchar2(200))
create table environment (
id number,
plattform_id number,
name varchar2(200))
[code].....
I am trying to restore to a backup instance on a backup server. When I try to recreate the tables I keep getting ORA-01659: unable to allocate MINEXTENTS. The tablespaces and datafiles on both servers show as the same size in OEM.
I have dropped all tables and OEM shows tablespaces are empty. Then I run a script to recreate all tables. Most of the tables don't get created because their TS is full. After the script to recreate all tables runs, the main tablespaces are full, more full than on the production machine. I have also tried ALTER TABLESPACE xxx COALESCE; on each tablespace right after dropping all tables and before recreating them to reclaim free space. Why is it full? I've only dropped and created the tables, there shouldn't be any data in them yet.
ORA-01659: unable to allocate MINEXTENTS beyond 2 in tablespace PLUS_T...The backup instance was already there, all I did was drop the tables. Here's what I ran on prod to build a script to recreate the tables on backup server. Got it off Burleson somewhere.
SELECT DBMS_METADATA.GET_DDL('TABLE',u.table_name) ||'; '
FROM USER_TABLES u;
I have a view on base tables holding historical data for previous 60 months(one table per month) with union all operators.create index on those base tables will improve performance or creating a primary key with disabled novalidate will improve for retrieving data?
The view has around 8 million data and used as a fact table with 4 dimension tables.A DTS package from MSSql side refreshes OLAP cube by retrieving data from these tables in oracle.
I am writing a procedure that will be called from a java wrapper.
The procedure do a lot of data manipulations and in between i am creating global temp table and saving the data into it for each request thats given as a parameter to the procedure. After all the processing i have to write the data from this global temp table into a physical table and atlast drop the temp table.
Create or replace proc_name ()
update table........
delete from ..........
CREATE GLOBAL TEMPORARY TABLE TSAAG
( supplier_id numeric(10) not null,
supplier_name varchar2(50) not null,
contact_name varchar2(50)
)
insert into............
drop table TSAAG;
End;
creating a global temp table inside a procedure is expensive...
Do we have anything like creating table before and calling the instanse of it in procedure.
Do we have any alternatives to this..
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 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 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)
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.
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.