How To Create Exact Copy Of A Table
Nov 24, 2012
I must admit my "google skills" have failed me and it is possible that I might be missing something obvious here but allow me to explain.
If I have a table that is populated/accessed by a typical OLTP application such that over time the data in the table may become "fragmented".
I know that is a very controversial term I used but that is not the question here. A simple way to describe the state of the table might be that the table has always been populated with lots of small INSERTs, modified with lots of small UPDATEs and data has been deleted in small DELETEs.
This has meant that the data is neither closely stored in data blocks nor is in any particular order (so there are some empty blocks under HWM).
Now my question is how do I create exact copy of this table and its indexes AS THEY EXIST AT THE MOMENT that includes
1) its data
2) its constraints/indexes etc.
3) its storage parameters
4) data stored in EXACTLY same manner as in original table.
To avoid complications, the table in question is just a normal heap table without any partitioning involved. While
CREATE TABLE AS SELECT (or CREATE TABLE followed by INSERT) will take care of points (1) to (3) above, it will not achieve point (4) above.
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Jan 22, 2009
My solution to the following question update 10 rows. It should update only 6 records. Create a copy of the missions table called AM_X_442_2. For missions on this table that meet the following criteria:
1. within the 10 most recent missions
2. length of the first word of the mission code_name exceeds 7 characters
Change the security level to the highest security level found in missions of the same type.
UPDATE
AM_X_442_2 am
SET
am.SECURITY_LEVEL =
(
SELECT
MAX(amx.SECURITY_LEVEL)
FROM
AM_X_442_2 am
INNER JOIN
AM_X_442_2 amx
[code]....
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Aug 16, 2010
I want to writa a query to fetch the INCOME TAX RATE from the given table, my calculated gross salary amount is 594000
FromAMT ToAMT Rate
------- ------ ----
300001 350000 0.75
350001 400000 1.50
400001 450000 2.5
450001 550000 3.5
5500001 650000 4.50
and so on...
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Apr 9, 2008
How to validate a sum of some records in a table to be exact value?
I want to guarantee that sum(val_column)=100 at database level. Check constraints out of question. Trigger before update statement disable any update to that column when incrementing one row and decrement another... (unless with for all...)
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Sep 1, 2010
There 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.
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Oct 18, 2013
I need to check the exact amount of space used (in bytes or MB) by a table which is having a BLOB column.I tried the following query but it is not giving the proper usage.
select segment_name , sum(bytes)from dba_extentswhere segment_type='TABLE'and segment_name in ('TEST_CLOB','TEST_BLOB','TEST_CLOB_ADV','TEST_BLOB_ADV') group by segment_name; I even tried the following stored procedure create or replace procedure sp_get_table_size (p_table_name varchar2)as l_segment_name varchar2(30); l_segment_size_blocks number; l_segment_size_bytes number; l_used_blocks number; l_used_bytes number; l_expired_blocks number; l_expired_bytes number; l_unexpired_blocks number; l_unexpired_bytes number; begin select
[code].......
But it is giving the error
Error starting at line 298 in command:exec sp_get_table_size ('TEST_CLOB_ADV')Error report:ORA-03213: Invalid Lob Segment Name for DBMS_SPACE packageORA-06512: at "SYS.DBMS_SPACE", line 210ORA-06512: at "SYS.SP_GET_TABLE_SIZE", line 20ORA-06512: at line 103213. 00000 - "Invalid Lob Segment Name for DBMS_SPACE package"*Cause: The Lob Segment specified in the DBMS_SPACE operation does not exist.
*Action: Fix the Segment Specification Although the LOB section is specified in create table syntax.
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Oct 22, 2013
I want to create binary copy of control file every time I do backup. I am using sql "alter database backup controlfile to ''+FRADG/TESTDB/controlfile/controlfile.ctl'' "; in my rman backup script. If I run it second time I got errors as it does does not allow to overwrite existing one.
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Apr 29, 2011
What is the difference between CREATE EXTERNAL TABLE Vs CREATE TABLE .?
Is CREATE EXTERNAL TABLE included in CREATE TABLE?
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Apr 30, 2010
i could copy data from tableA to tableB with the scenario below
1) Currently we have no unique key / primary key defined on both of this tables, due to the nature of data, so insert/update will not work
2) We cant truncate/insert as user will be accessing this tables when the copying process takes place, so we dont want to end up having a scenario where the table does not contain data at a certain time
Will materialize view full refresh work in refreshing a table so we could avoid the problem faced in point 1 & 2.
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Feb 11, 2013
I have two tables namely PERSON and WIFE. I want to make WIFE's data available in PERSON table while keeping entries of WIFE maintained and at the same time adding some the values of PERSON against the data of wife.
PERSON Table
PK NAME ADDRESS IS_MARRIED
1 John ab city Y
2 Varvatos cd town N
3 Smith ef town Y
4 Henry gh city Y
5 Lynda gh city Y
WIFE table
PK PERSON_ID (FK) NAME
1 1 Alice
2 3 Rosy
3 4 Lynda
Now i want to copy data of WIFE table into PERSON table like this PERSON table
PK NAME ADDRESS IS_MARRIED
1 John ab city Y
2 Varvatos cd town N
3 Smith ef town Y
4 Henry gh city Y
5 Lynda gh city Y
6 Alice ab city Y
7 Rosy ef town Y
As in the given example you might have noticed that ADDRESS of wife is same as of her spouse and same goes for IS_MARRIED column. Moreover, the PK is also not duplicated. How to go about this?
Another important factor is Lynda already exits in PERSON table, therefore, i certainly don't want to duplicate her entry.
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May 21, 2006
Is it possible to copy a value in a column from a table into another column in another table using the select statement.
Example: I want to copy the arrival date from the guest table to date_charge in the charges table.
CREATE TABLE GUEST
(ROOM_NUMBER VARCHAR2(2),
DATE_ARRIVAL DATE DEFAULT SYSDATE NOT NULL);
CREATE TABLE CHARGES
(ROOM_NUMBER VARCHAR2(2),
DATE_CHARGE DATE default Sysdate);
[code]....
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Jun 28, 2010
1. I am inserting a value to a table.through uploading the csv file to the DB table using apex.
2. After the data get inserted into the table(parent),my data should be copied to the another table with some conditions .
3. Is it possible to write a trigger to insert statement from selecting the values from another table.
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May 27, 2010
How can i copy a single column from one table to another. Table 1 has a column with data in it, table 2 has the column but is empty, i want to copy data for a single column from table1 to table 2. By the way these table have multiple columns.
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Dec 20, 2011
how to copy data and constraints from one table to another table
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Oct 5, 2010
i have a table COLOR having alphanumeric fields i.e Color Description & Color Ref. i want to copy the values from Color Description to Color Ref.
what will the select statement for this?
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Jul 9, 2008
Triggers for oracle database. What I am trying to do is copy original data from one table to another table prior to an update, insert, or delete occurring. Basically we are trying to keep a transactional history, with out having to restore the data. Here is what I have created to date, however it is not executing consistently.
CREATE OR REPLACE TRIGGER DATA_COPY BEFORE
INSERT
OR DELETE
OR UPDATE ON "DB1"."TABLE_1"
[code].......
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Nov 16, 2010
I have 2 tables with same no of column and range partition based on date.At the end of month i want to copy the data of one table to another table.Instead of copy the data i want to copy the data of one partition completely to another table partition ..
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May 11, 2011
In MS Windows, if I copy a file and paste it into the same folder, I get a copy with the text 'Copy of' in front of the file name. If I paste it again, I get another copy with a different version number.
E.g.
sqlnet.log
Copy of sqlnet.log
Copy (1) of sqlnet.log
Copy (2) of sqlnet.log
I was wondering if I could copy existing rows into a table and do the same thing?
So, for example if I had this table:
create table tst_srch (srch_is varchar(100), user_name varchar(100), srch_name varchar(100));
insert into tst_srch values (1,'USER1','SRCHA');
insert into tst_srch values (2,'USER1','SRCHB');
insert into tst_srch values (3,'USER1','SRCHC');
insert into tst_srch values (4,'USER1','SRCHD');
insert into tst_srch values (5,'USER2','SRCHC');
insert into tst_srch values (6,'USER2','SRCHD');
insert into tst_srch values (7,'USER2','SRCHD_1');
Could I write a procedure like copy_searches('USER1','USER2') that would copy all USER1's searches to USER2 - including renaming any duplicates.
So it would create these new rows:
8,USER2,SRCHA
9,USER2,SRCHB
10,USER2,SRCHC_1
11,USER2,SRCHD_2
I've looked at various insert statements, merge and match statements and exception handling in procedures .
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Feb 27, 2012
i have a table with 15 coulums and containing millions of rows which is being updated everyday.Now i have created a similar report table with only the coulums i need to report on from the main table.what plsql script or if there is any better alternative do i need to write to copy the data from the coulums i need from the main table to the new report table. the new report table will be be updated every 01:00am with the data coming from the main table and the update is automated.
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Mar 11, 2011
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.
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Feb 14, 2013
I have two tables one is
1)create table abc(c_name varchar2(10),c_number number(6),c_loc varchar2(8)); --having values
2)create table temp(sname varchar2(10),sid number(4),address varchar2(10));---no having
and my question is how to insert a values into temp using when-button-pressed trigger based on abc table in oracle form.
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Dec 4, 2012
I need to copy one table which is having NCLOB column into our new DB(11g) from old DB (10g). As this table having huge records (1 crore) it is difficult to use direct insert statement (INSERT INTO ... SELECT * FROM @remotedb). I don't have DBA privilege to use loader.
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Oct 19, 2010
I renamed 100 tables and recreated them, now I need to copy supplemental login information from renamed table to new tables. Environment is oracle 10G.
OS - Solaris
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Nov 17, 2010
I have to copy a table from oracle 8 to oracle 10
- dblink don't work between 8 - 10
- can I dump table ?
- when I try to use sqlload via TXT file, I have error messages due to a column containing 'special' caracters (
,..) and line too long (splitted in several rows)
how can I do ?
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Oct 10, 2012
i have a large OLTP database and we are doing table stats copy amount subpartition to save the load on system. while doing an copy default subpartition stats: I see the following error:
SQL> exec DBMS_STATS.COPY_TABLE_STATS('cusms','STATUS_HIST','P_VDEF_10_2012_S100','P_VDEF13_10_2012_S100',force=>true);
BEGIN DBMS_STATS.COPY_TABLE_STATS('cusms','STATUS_HIST','P_VDEF_10_2012_S100','P_VDEF13_10_2012_S100',force=>true); END;
*
ERROR at line 1:
ORA-03113: end-of-file on communication channel
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Oct 21, 2011
How to calculate exact age for example my date of birth is 10-04-1972 and today current date is 21-10-2011 so i want to calculate age how many years, how many months and how many days.
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Nov 23, 2011
I created a table of Number(20,4) column. I inserted an amount value 999999999999999.5555 but this value is rounded off to 1000000000000000.0000 automatically in Oracle. How to avoid this? I tried for less number of digits and I am getting the exact value. Is there any way to get the exact value without changing the datatype?
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Dec 11, 2012
When I pass the input as 'micky', then i should get the count of records as 4. I tried to use REGEXP_LIKE, but could not get the result.
Test Case:
DROP TABLE test1;
CREATE TABLE test1( pattern_series VARCHAR2(30));
INSERT INTO test1 VALUES ('qa_micky1');
INSERT INTO test1 VALUES ('qa_micky2');
[code].....
-- I should get the output as 4 not 8
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Jan 7, 2013
How can I find out that exact count of '~'?
SELECT NVL(LENGTH('~~~~~~~~~~~~~~~~~')-LENGTH(REPLACE('~~~~~~~~~~~~~~~~~','~','')),0) result
FROM dual;
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Mar 18, 2013
I am using Release 10.2.0.1.0 version of oracle. I am getting a special character, but i suspect it as any other language character.
Its appearing in my 'TOAD editor/Sql prompt editor' as 'A?'. but when i am selecting it from the table using below query, its giving 'No rows Returned'.
select id from tab1 where id like 'A%';
How can i be able to see the exact character or which editor will enable me to see the character?
I think sql developer GUI might be able to show the same but i dont have sql developer with me.
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