“ MYISAM”数据库存储引擎和“ ISAM”索引之间的区别
[英]differences between “MYISAM” database storage engine and “ISAM” index
问题描述
what is the differences between "MYISAM" database storage engine and "ISAM" index? 
“ MYISAM”数据库存储引擎和“ ISAM”索引之间有什么区别？ What is the relation between these two concepts? 这两个概念之间有什么关系？ any reading resources? 有阅读资源吗？ TNX. TNX。
1 个解决方案
解决方案1
0 2015-11-29 04:30:41
Well, the main difference is in the way they store data. 好吧，主要区别在于它们存储数据的方式。 MyISAM table storage stores its data in machine independant format, placing the low byte first which means if necessary, you could copy them to tables on a different machine. MyISAM表存储以与计算机无关的格式存储其数据，将低字节放在首位，这意味着如有必要，您可以将它们复制到另一台计算机上的表中。 There are a few differences, apart from that, one of them is the ability to index TEXT and BLOB type columns, as well as index columns that contain NULL values. 除此以外，还有一些区别，其中之一是索引TEXT和BLOB类型的列以及包含NULL值的索引列的能力。 With MyISAM, you can work with larger files than with ISAM. 与MyISAM相比，使用MyISAM可以处理更大的文件。 It has a better AUTO_INCREMENT handling, and a better table integrity check. 它具有更好的AUTO_INCREMENT处理能力和更好的表完整性检查。
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