Most mysql cast varchar related news are at:
Major correction: ColdFusion 10 Cluster setup in server.xml 13 Feb 2013 | 10:20 pm
So, this incorrect statement on various offical Adobe pages has cost me many hours of frustration! We want ColdFusion 10 Enterprise, installed with the built-in Tomcat 7, to run on Apache 2.2. And we...
Refynr is exhibiting at IMEX America 2012! #IMEX12 | Social Media & Tech for Events 13 Sep 2012 | 02:43 am
We are excited to announce that we have made a partnership to share a booth with SongDivision.com at IMEX America 2012 at Las Vegas from October 9-11. We are meeting with Buyers every day as often as...
More mysql cast varchar related news:
MySQL Unique-Index Groß- und Kleinschreibung it.cjunky.de 9 Nov 2012 | 03:43 pm
Letzt musste ich feststellen das MySQL bei VARCHAR Feldern keine Unterscheidung zwischen Groß-und Kleinschreibung macht. Aufgefallen ist mir das als ich einen INSERT in eine Tabelle ausführen wollte. ...
Korrekte numerische Sortierung von Datensätzen aus komplexen String-Feldern media-web.de 5 Aug 2013 | 12:51 pm
Problembeschreibung/Zielstellung Mitunter kommt es vor, dass man in einer MySQL-Tabelle varchar()-Datenfelder hat in denen Informationen stehen an die man herankommen möchte, z.B. um gezielt eine kor...
Efektívne na MySQL, časť prvá blog.websupport.sk 17 Jun 2013 | 12:48 am
22Na admin oddelení sa často stretávame s rôznymi problémami našich zákazníkov, ktoré sú nie vždy chybou na strane samotného servera a hostingu ako takého. Preto sme sa rozhodli písať seriál o rôznych...
MySQL Innodb数据库性能实践——VARCHAR vs CHAR ourmysql.com 9 Aug 2013 | 04:45 am
学过数据库理论的读者，都应该还记得关于CHAR和VARCHAR的性能对比：CHAR比VARCHAR更快，因为CHAR是固定长度的，而VARCHAR需要增加一个长度标识，处理时需要多一次运算。 针对这种情况，我做了一下基准测试，基准测试环境如下： 【硬件配置】 硬件 配置 CPU Intel(R) Xeon(R) CPU E5620 主频2.40...
Convert VARCHAR as INT for sorting in MYSQL techispeaks.com 16 Mar 2012 | 07:45 am
Today i was working on a database which was more than 10 years old. My task is to fetch records form table and display based on sorting order. Here my problem is sorting column was defined as VARCHAR ...
Write the differences between char and varchar data types in MySQL eduquiz.info 25 Apr 2012 | 11:22 pm
The CHAR and VARCHAR types are similar, but differ in the way they are stored and retrieved. They also differ in maximum length and in whether trailing spaces are retained. The CHAR and VARCHAR types...
Best way to store IP addresses in MySQL daipratt.co.uk 10 Aug 2010 | 08:53 pm
It’s tempting to store IP addresses in a database as a VARCHAR(15) in the absence of a dedicated IP address field type in mysql, but that isn’t the most efficient way of doing so. The best way that I’...
MySQL Performance: # of columns vs varchars ender.com 9 Oct 2009 | 12:20 pm
I have long told fellow developers that trying to stick to tables that have entirely fixed width columns is good practice. This tends to lead to, at the least, normalizing out text on a performance s...
MySQL: Comparando fechas que no son fechas juque.cl 15 Jan 2012 | 04:38 am
Este es un problema más frecuente que lo que se pueda pensar, ¿cómo hago una consulta MySQL que debe comparar fechas usando campos que no son del tipo DATE si no más bien VARCHAR?. El otro día me pid...
MySQL 的 max key length joehorn.idv.tw 2 Mar 2012 | 07:18 am
我曾試著在 MYISAM 格式的 table 裡，把兩個 VARCHAR(255)，UTF8 編碼的欄位設定成一組 UNIQUE KEY。 當時遇到這個 Error： #1071 - Specified key was too long; max key length is 1000 bytes VARCHAR(255) 代表該欄位可以紀錄 255 個字元，每個字元以 UTF8 encode...
