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String Compress [message #634070]

Tue, 03 March 2015 16:05

Yuvraaj
Messages: 122
Registered: January 2011
Location: California, USA

Senior Member

Hi All,

Is there a way to compress the incoming string and store in a column? i.e My table column size is varchar2(10). If i get a string of size 20 I have to compress and store, up on retrieval I should get original string.

Thanks

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Re: String Compress [message #634073 is a reply to message #634070]

Tue, 03 March 2015 22:22

Asfakul
Messages: 43
Registered: July 2014

Member

Here is a good article you can look into.

https://docs.oracle.com/cd/E17952_01/refman-5.1-en/encryption-functions.html

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Re: String Compress [message #634074 is a reply to message #634073]

Tue, 03 March 2015 23:10

Lalit Kumar B
Messages: 3174
Registered: May 2013
Location: World Wide on the Web

Senior Member

Asfakul wrote on Wed, 04 March 2015 09:52

Here is a good article you can look into.

https://docs.oracle.com/cd/E17952_01/refman-5.1-en/encryption-functions.html

That link points to MySQL 5.1 Reference Manual. You would need to search here.

[Updated on: Tue, 03 March 2015 23:12]

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Re: String Compress [message #634077 is a reply to message #634074]

Wed, 04 March 2015 00:47

Michel Cadot
Messages: 68776
Registered: March 2007
Location: Saint-Maur, France, https...

Senior Member
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Why search in 12c documentation when you have a 11g database?

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Re: String Compress [message #634079 is a reply to message #634077]

Wed, 04 March 2015 01:25

Lalit Kumar B
Messages: 3174
Registered: May 2013
Location: World Wide on the Web

Senior Member

Hmm, I didn't notice OP mentioned 11g. Anyway, my intention was to point to the Oracle database documentation as the post had a link to MySQL.

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Re: String Compress [message #634080 is a reply to message #634070]

Wed, 04 March 2015 01:39

Littlefoot
Messages: 21826
Registered: June 2005
Location: Croatia, Europe

Senior Member
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Yuvraaj wrote on Tue, 03 March 2015 23:05

Hi All,

Is there a way to compress the incoming string and store in a column? i.e My table column size is varchar2(10). If i get a string of size 20 I have to compress and store, up on retrieval I should get original string.

Thanks

Why don't you simply alter table and enlarge column's size?

Or, use smaller font to preserve some space.

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Re: String Compress [message #634081 is a reply to message #634079]

Wed, 04 March 2015 01:40

Michel Cadot
Messages: 68776
Registered: March 2007
Location: Saint-Maur, France, https...

Senior Member
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And mine was to, anyway, point to the trend of your current posts. Smile

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Re: String Compress [message #634105 is a reply to message #634081]

Wed, 04 March 2015 08:22

Bill B
Messages: 1971
Registered: December 2004

Senior Member

I agree. With the cheap price for storage these days, why would you not increase the column width and if you want to save space and have the Oracle 11 enterprise edition simply compress the table.

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Re: String Compress [message #634108 is a reply to message #634081]

Wed, 04 March 2015 09:01

gazzag
Messages: 1119
Registered: November 2010
Location: Bedwas, UK

Senior Member

Oracle always points to the latest release Wink

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Re: String Compress [message #634560 is a reply to message #634108]

Wed, 11 March 2015 05:59

msol25
Messages: 396
Registered: June 2011

Senior Member

Compress at table level,you can use like below:


create table test compress for query high as
  select  *
  from    source_table

[Updated on: Wed, 11 March 2015 06:00]

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Re: String Compress [message #634570 is a reply to message #634560]

Wed, 11 March 2015 07:23

Solomon Yakobson
Messages: 3312
Registered: January 2010
Location: Connecticut, USA

Senior Member

I didn't see any mentioning OP is on exadata or is using filesystem supporting Oracle Hybrid Columnar Compression.

SY.

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Re: String Compress [message #634571 is a reply to message #634570]

Wed, 11 March 2015 07:26

gazzag
Messages: 1119
Registered: November 2010
Location: Bedwas, UK

Senior Member

Thank you. I had no idea what he was on about Smile

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