Re: [asterisk-users] CDR - Freepbx - Safe to add primary key to table ?
This thread confuses me. I've not worked with the Asterisk MySQL CDR, but have worked with SQL for years. Every table should have a primary key. Is no column identified as a PK? If there is a PK, you will not be able to designate another column as PK. If there is a PK, you don't need to worry about Asterisk duplicating keys in that column-the database will not permit non-unique PKs. If (and this would be really weird) the table is created with no primary key, it shouldn't be a problem to add the primary key constraint to a column IF there are no nulls or duplicates existing. --Don From: asterisk-users-boun...@lists.digium.com [mailto:asterisk-users-boun...@lists.digium.com] On Behalf Of Leandro Dardini Sent: Thursday, December 06, 2012 12:50 PM To: rwhee...@artifact-software.com; Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [asterisk-users] CDR - Freepbx - Safe to add primary key to table ? The reason I add a new column autoincrement is due to the fact I trust more mysql about uniquness than asterisk. Leandro I am typing from my mobile phone... Il giorno 06/dic/2012 19:11, Ron Wheeler rwhee...@artifact-software.com ha scritto: It seems like a safe thing to do. You could also ask about the impact of making an existing column a primary key, in a MySQL forum. Leandro's solution seems to be a good one as well and does guarantee uniqueness. Ron On 06/12/2012 12:25 PM, Leandro Dardini wrote: Yes, go for it. However I have added another autoincrement column and created the primary key on it. On the other columns I need to search I have created just an index. Leandro 2012/12/6 Olivier oza_4...@yahoo.fr Hello, I need to develop an application that will query (mostly reading) an existing MySQL CDR database. This database (named asteriskcdrdb) was created during Freepbx 2.10 install on my asterisk 1.8 setup. This database has a single CDR table which is filled by Asterisk. The tools I'm planning to use require this table to include a Primary Key. Is it safe to Alter this table telling it to use UniqueID column as a Primary Key ? (Sure, I'll test this on a database copy but I'm not confident my tests will cover everything) Regards -- -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] CDR - Freepbx - Safe to add primary key to table ?
You can also (in mysql) tag a column as unique: alter table blah add unique(column_name); This doesn't add a key AFAIK unless you ask it to be a key: alter table blah add unique key(column_name); If you will never refer to a row using the auto-increment column, why have it? No problem having a table with no keys whatsoever, if you never plan to pull up records without dumping the whole table. But agree, that would be odd in this instance, since presumably you would at least want to have key on the source or destination columns. j On 12/07/2012 12:52 PM, Don Kelly wrote: This thread confuses me. I've not worked with the Asterisk MySQL CDR, but have worked with SQL for years. Every table should have a primary key. Is no column identified as a PK? If there is a PK, you will not be able to designate another column as PK. If there is a PK, you don't need to worry about Asterisk duplicating keys in that column---the database will not permit non-unique PKs. If (and this would be really weird) the table is created with no primary key, it shouldn't be a problem to add the primary key constraint to a column IF there are no nulls or duplicates existing. --Don *From:*asterisk-users-boun...@lists.digium.com [mailto:asterisk-users-boun...@lists.digium.com] *On Behalf Of *Leandro Dardini *Sent:* Thursday, December 06, 2012 12:50 PM *To:* rwhee...@artifact-software.com; Asterisk Users Mailing List - Non-Commercial Discussion *Subject:* Re: [asterisk-users] CDR - Freepbx - Safe to add primary key to table ? The reason I add a new column autoincrement is due to the fact I trust more mysql about uniquness than asterisk. Leandro I am typing from my mobile phone... Il giorno 06/dic/2012 19:11, Ron Wheeler rwhee...@artifact-software.com mailto:rwhee...@artifact-software.com ha scritto: It seems like a safe thing to do. You could also ask about the impact of making an existing column a primary key, in a MySQL forum. Leandro's solution seems to be a good one as well and does guarantee uniqueness. Ron On 06/12/2012 12:25 PM, Leandro Dardini wrote: Yes, go for it. However I have added another autoincrement column and created the primary key on it. On the other columns I need to search I have created just an index. Leandro 2012/12/6 Olivier oza_4...@yahoo.fr mailto:oza_4...@yahoo.fr Hello, I need to develop an application that will query (mostly reading) an existing MySQL CDR database. This database (named asteriskcdrdb) was created during Freepbx 2.10 install on my asterisk 1.8 setup. This database has a single CDR table which is filled by Asterisk. The tools I'm planning to use require this table to include a Primary Key. Is it safe to Alter this table telling it to use UniqueID column as a Primary Key ? (Sure, I'll test this on a database copy but I'm not confident my tests will cover everything) Regards -- -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[asterisk-users] CDR - Freepbx - Safe to add primary key to table ?
Hello, I need to develop an application that will query (mostly reading) an existing MySQL CDR database. This database (named asteriskcdrdb) was created during Freepbx 2.10 install on my asterisk 1.8 setup. This database has a single CDR table which is filled by Asterisk. The tools I'm planning to use require this table to include a Primary Key. Is it safe to Alter this table telling it to use UniqueID column as a Primary Key ? (Sure, I'll test this on a database copy but I'm not confident my tests will cover everything) Regards -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] CDR - Freepbx - Safe to add primary key to table ?
Yes, go for it. However I have added another autoincrement column and created the primary key on it. On the other columns I need to search I have created just an index. Leandro 2012/12/6 Olivier oza_4...@yahoo.fr Hello, I need to develop an application that will query (mostly reading) an existing MySQL CDR database. This database (named asteriskcdrdb) was created during Freepbx 2.10 install on my asterisk 1.8 setup. This database has a single CDR table which is filled by Asterisk. The tools I'm planning to use require this table to include a Primary Key. Is it safe to Alter this table telling it to use UniqueID column as a Primary Key ? (Sure, I'll test this on a database copy but I'm not confident my tests will cover everything) Regards -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] CDR - Freepbx - Safe to add primary key to table ?
2012/12/6 Leandro Dardini ldard...@gmail.com Yes, go for it. However I have added another autoincrement column and created the primary key on it. May I ask why did you choose to add a new column ? I'm hesitating between both solutions. For me, your solution has the advantage that, if, for any reason, a uniqueid is missing, it would still work ok. On the other columns I need to search I have created just an index. Leandro 2012/12/6 Olivier oza_4...@yahoo.fr Hello, I need to develop an application that will query (mostly reading) an existing MySQL CDR database. This database (named asteriskcdrdb) was created during Freepbx 2.10 install on my asterisk 1.8 setup. This database has a single CDR table which is filled by Asterisk. The tools I'm planning to use require this table to include a Primary Key. Is it safe to Alter this table telling it to use UniqueID column as a Primary Key ? (Sure, I'll test this on a database copy but I'm not confident my tests will cover everything) Regards -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] CDR - Freepbx - Safe to add primary key to table ?
It seems like a safe thing to do. You could also ask about the impact of making an existing column a primary key, in a MySQL forum. Leandro's solution seems to be a good one as well and does guarantee uniqueness. Ron On 06/12/2012 12:25 PM, Leandro Dardini wrote: Yes, go for it. However I have added another autoincrement column and created the primary key on it. On the other columns I need to search I have created just an index. Leandro 2012/12/6 Olivier oza_4...@yahoo.fr mailto:oza_4...@yahoo.fr Hello, I need to develop an application that will query (mostly reading) an existing MySQL CDR database. This database (named asteriskcdrdb) was created during Freepbx 2.10 install on my asterisk 1.8 setup. This database has a single CDR table which is filled by Asterisk. The tools I'm planning to use require this table to include a Primary Key. Is it safe to Alter this table telling it to use UniqueID column as a Primary Key ? (Sure, I'll test this on a database copy but I'm not confident my tests will cover everything) Regards -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- Ron Wheeler President Artifact Software Inc email: rwhee...@artifact-software.com skype: ronaldmwheeler phone: 866-970-2435, ext 102 -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] CDR - Freepbx - Safe to add primary key to table ?
The reason I add a new column autoincrement is due to the fact I trust more mysql about uniquness than asterisk. Leandro I am typing from my mobile phone... Il giorno 06/dic/2012 19:11, Ron Wheeler rwhee...@artifact-software.com ha scritto: It seems like a safe thing to do. You could also ask about the impact of making an existing column a primary key, in a MySQL forum. Leandro's solution seems to be a good one as well and does guarantee uniqueness. Ron On 06/12/2012 12:25 PM, Leandro Dardini wrote: Yes, go for it. However I have added another autoincrement column and created the primary key on it. On the other columns I need to search I have created just an index. Leandro 2012/12/6 Olivier oza_4...@yahoo.fr Hello, I need to develop an application that will query (mostly reading) an existing MySQL CDR database. This database (named asteriskcdrdb) was created during Freepbx 2.10 install on my asterisk 1.8 setup. This database has a single CDR table which is filled by Asterisk. The tools I'm planning to use require this table to include a Primary Key. Is it safe to Alter this table telling it to use UniqueID column as a Primary Key ? (Sure, I'll test this on a database copy but I'm not confident my tests will cover everything) Regards -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- Ron Wheeler President Artifact Software Inc email: rwhee...@artifact-software.com skype: ronaldmwheeler phone: 866-970-2435, ext 102 -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
