How to quickly increase column size in Oracle?Why won't Oracle alter the size of a column that is used for...
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How to quickly increase column size in Oracle?
Why won't Oracle alter the size of a column that is used for sub partitioning?rman 'delete archivelog all’ very slowMigrate / Copy Huge data from Oracle to SQL ServerRetrieve Data faster from a huge Oracle TableLast few rows from a non-indexed table in OracleFastest way to change column type from varchar2 to number on large table in OracleSlow running Oracle query caused by unnecessary full table scanOracle index on column with length > maximum varchar2 lengthOracle; Table column reducing fails with 'value too big' error although such data doesnot existAdd column to a table for every shema in an oracle db 11g
In our Oracle 11 database we have a table with more that 100 million rows and we would like to increase size of one column (not used in any index). I tried to execute command
alter table shipment modify (description varchar2(21) );
but it takes to much time. Is there any other (faster) way to increase column size?
oracle ddl
asked Feb 27 '15 at 9:13
Paweł AdamskiPaweł Adamski
101113
add a comment |
In our Oracle 11 database we have a table with more that 100 million rows and we would like to increase size of one column (not used in any index). I tried to execute command
alter table shipment modify (description varchar2(21) );
but it takes to much time. Is there any other (faster) way to increase column size?
oracle ddl
asked Feb 27 '15 at 9:13
Paweł AdamskiPaweł Adamski
101113
4
Increasing the size of a column should be pretty much instantaneous. It's only a meta-data update, no data is actually being changed (I just did this on a table with 30 Million rows: took 0.1 seconds). I would guess youralterstatement is waiting for a lock.
– a_horse_with_no_name
Feb 27 '15 at 15:08
add a comment |
In our Oracle 11 database we have a table with more that 100 million rows and we would like to increase size of one column (not used in any index). I tried to execute command
alter table shipment modify (description varchar2(21) );
but it takes to much time. Is there any other (faster) way to increase column size?
oracle ddl
asked Feb 27 '15 at 9:13
Paweł AdamskiPaweł Adamski
101113
In our Oracle 11 database we have a table with more that 100 million rows and we would like to increase size of one column (not used in any index). I tried to execute command
alter table shipment modify (description varchar2(21) );
but it takes to much time. Is there any other (faster) way to increase column size?
oracle ddl
oracle ddl
asked Feb 27 '15 at 9:13
Paweł AdamskiPaweł Adamski
101113
asked Feb 27 '15 at 9:13
Paweł AdamskiPaweł Adamski
101113
asked Feb 27 '15 at 9:13
Paweł AdamskiPaweł Adamski
101113
asked Feb 27 '15 at 9:13
Paweł AdamskiPaweł Adamski
101113
asked Feb 27 '15 at 9:13
Paweł AdamskiPaweł Adamski
101113
101113
4
Increasing the size of a column should be pretty much instantaneous. It's only a meta-data update, no data is actually being changed (I just did this on a table with 30 Million rows: took 0.1 seconds). I would guess youralterstatement is waiting for a lock.
– a_horse_with_no_name
Feb 27 '15 at 15:08
add a comment |
4
Increasing the size of a column should be pretty much instantaneous. It's only a meta-data update, no data is actually being changed (I just did this on a table with 30 Million rows: took 0.1 seconds). I would guess youralterstatement is waiting for a lock.
– a_horse_with_no_name
Feb 27 '15 at 15:08
4
4
Increasing the size of a column should be pretty much instantaneous. It's only a meta-data update, no data is actually being changed (I just did this on a table with 30 Million rows: took 0.1 seconds). I would guess your
alter statement is waiting for a lock.– a_horse_with_no_name
Feb 27 '15 at 15:08
Increasing the size of a column should be pretty much instantaneous. It's only a meta-data update, no data is actually being changed (I just did this on a table with 30 Million rows: took 0.1 seconds). I would guess your
alter statement is waiting for a lock.– a_horse_with_no_name
Feb 27 '15 at 15:08
add a comment |
2 Answers
2
active
oldest
votes
Your two options are (depending on the use case):
https://asktom.oracle.com/pls/apex/f?p=100:11:0::::P11_QUESTION_ID:8753545300346585555
https://asktom.oracle.com/pls/asktom/asktom.search?tag=best-way-to-change-the-datatype-of-a-column-in-a-table-with-20-million
answered 10 mins ago
FlorianFlorian
1
New contributor
Florian is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
Is there any other (faster) way to increase column size?
You can try the parallel clause
alter table shipment modify (description varchar2(21) ) parallel 8;
And you can try the dbms_redefinition package.
Redefining Tables Online
answered Feb 27 '15 at 13:31
Gandolf989Gandolf989
1,218512
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Your two options are (depending on the use case):
https://asktom.oracle.com/pls/apex/f?p=100:11:0::::P11_QUESTION_ID:8753545300346585555
https://asktom.oracle.com/pls/asktom/asktom.search?tag=best-way-to-change-the-datatype-of-a-column-in-a-table-with-20-million
answered 10 mins ago
FlorianFlorian
1
New contributor
Florian is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
Your two options are (depending on the use case):
https://asktom.oracle.com/pls/apex/f?p=100:11:0::::P11_QUESTION_ID:8753545300346585555
https://asktom.oracle.com/pls/asktom/asktom.search?tag=best-way-to-change-the-datatype-of-a-column-in-a-table-with-20-million
answered 10 mins ago
FlorianFlorian
1
New contributor
Florian is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
Your two options are (depending on the use case):
https://asktom.oracle.com/pls/apex/f?p=100:11:0::::P11_QUESTION_ID:8753545300346585555
https://asktom.oracle.com/pls/asktom/asktom.search?tag=best-way-to-change-the-datatype-of-a-column-in-a-table-with-20-million
answered 10 mins ago
FlorianFlorian
1
New contributor
Florian is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Your two options are (depending on the use case):
https://asktom.oracle.com/pls/apex/f?p=100:11:0::::P11_QUESTION_ID:8753545300346585555
https://asktom.oracle.com/pls/asktom/asktom.search?tag=best-way-to-change-the-datatype-of-a-column-in-a-table-with-20-million
answered 10 mins ago
FlorianFlorian
1
New contributor
Florian is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 10 mins ago
FlorianFlorian
1
New contributor
Florian is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 10 mins ago
FlorianFlorian
1
answered 10 mins ago
FlorianFlorian
1
1
New contributor
Florian is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Florian is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Florian is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
Is there any other (faster) way to increase column size?
You can try the parallel clause
alter table shipment modify (description varchar2(21) ) parallel 8;
And you can try the dbms_redefinition package.
Redefining Tables Online
answered Feb 27 '15 at 13:31
Gandolf989Gandolf989
1,218512
add a comment |
Is there any other (faster) way to increase column size?
You can try the parallel clause
alter table shipment modify (description varchar2(21) ) parallel 8;
And you can try the dbms_redefinition package.
Redefining Tables Online
answered Feb 27 '15 at 13:31
Gandolf989Gandolf989
1,218512
add a comment |
Is there any other (faster) way to increase column size?
You can try the parallel clause
alter table shipment modify (description varchar2(21) ) parallel 8;
And you can try the dbms_redefinition package.
Redefining Tables Online
answered Feb 27 '15 at 13:31
Gandolf989Gandolf989
1,218512
Is there any other (faster) way to increase column size?
You can try the parallel clause
alter table shipment modify (description varchar2(21) ) parallel 8;
And you can try the dbms_redefinition package.
Redefining Tables Online
answered Feb 27 '15 at 13:31
Gandolf989Gandolf989
1,218512
answered Feb 27 '15 at 13:31
Gandolf989Gandolf989
1,218512
answered Feb 27 '15 at 13:31
Gandolf989Gandolf989
1,218512
answered Feb 27 '15 at 13:31
Gandolf989Gandolf989
1,218512
1,218512
add a comment |
add a comment |
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4
Increasing the size of a column should be pretty much instantaneous. It's only a meta-data update, no data is actually being changed (I just did this on a table with 30 Million rows: took 0.1 seconds). I would guess your
alterstatement is waiting for a lock.– a_horse_with_no_name
Feb 27 '15 at 15:08