Watch a video with Tom Kyte about top features of Oracle 12c:
http://youtu.be/ekTTXoHBmWw
Wednesday, July 17, 2013
Monday, March 25, 2013
Oracle: Skip locked rows
In Oracle 11g you can
SELECT *
FROM EMPLOYEES
FOR UPDATE SKIP LOCKED;
Which means that you'll get rows that are not locked by another session.
SELECT *
FROM EMPLOYEES
FOR UPDATE SKIP LOCKED;
Friday, February 8, 2013
Oracle 12c new features
See in the link below some new feature available in the upcoming version of Oracle DBMS, 12c.
http://www.oracle-base.com/blog/2012/10/06/oracle-openworld-2012-day-5/
What I like:
- Cascade for TRUNCATE and EXCHANGE partition.
- Multiple partition operations in a single DDL
- Online move of a partition(without DBMS_REDEFINTIION).
- Interval + Reference Partitioning.
- If the optimizer notices the cardinality is not what is expected, so the current plan is not optimal, it can alter subsequent plan operations to take allow for the differences between the estimated and actual cardinalities.
- The stats gathered during this process are persisted as Adaptive Statistics, so future decisions can benefit from this.
- Information Lifecycle Management: Uses heat map. Colder data is compressed and moved to lower tier storage. Controlled by declarative DDL policy.
http://www.oracle-base.com/blog/2012/10/06/oracle-openworld-2012-day-5/
What I like:
- Cascade for TRUNCATE and EXCHANGE partition.
- Multiple partition operations in a single DDL
- Online move of a partition(without DBMS_REDEFINTIION).
- Interval + Reference Partitioning.
- If the optimizer notices the cardinality is not what is expected, so the current plan is not optimal, it can alter subsequent plan operations to take allow for the differences between the estimated and actual cardinalities.
- The stats gathered during this process are persisted as Adaptive Statistics, so future decisions can benefit from this.
- Information Lifecycle Management: Uses heat map. Colder data is compressed and moved to lower tier storage. Controlled by declarative DDL policy.
Sunday, August 19, 2012
Dicţionar ştefănesc(4)
tati, upak = tati, hai în parc
mamac = raţa
utatu = elefantul
pagalal = papagal
mamac = raţa
utatu = elefantul
pagalal = papagal
Friday, August 17, 2012
Dicţionar ştefănesc(3)
vavau fuc = mai vreau suc
titac = ceas
tati, potetă! = tati, viteză(adică mai turează şi tu motorul ăla, că-mi place)
e som = mi-e somn
titac = ceas
tati, potetă! = tati, viteză(adică mai turează şi tu motorul ăla, că-mi place)
e som = mi-e somn
Thursday, August 16, 2012
Dictzionar shtefănesc(2)
Tetat a minat atolo = Stefan a terminat acest lucru = am terminat :)
Etobotau atolo = e locul meu acolo = da-te la o parte
A tutut Tetat = a cazut Stefan
tatolu iamau = tractorul e al meu
Paia, iau si eu atale = Maria, vreau si eu sandalele
Etobotau atolo = e locul meu acolo = da-te la o parte
A tutut Tetat = a cazut Stefan
tatolu iamau = tractorul e al meu
Paia, iau si eu atale = Maria, vreau si eu sandalele
Wednesday, August 8, 2012
Dictzionar shtefănesc
ie ie ie păsasă = saru'mana pentru masă
a cucut tetat pishu = a facut stefan pishu
tatiii tateee = tati, ia-ma si pe mine in bratze
nu pate aia = nu-mi place
a cucut tetat pishu = a facut stefan pishu
tatiii tateee = tati, ia-ma si pe mine in bratze
nu pate aia = nu-mi place
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