I am unable to create NVARCHAR data type in MySQL. I have the following query - CREATE TABLE table1 ( column1 NVARCHAR(10) );. This is ... ... <看更多>
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I am unable to create NVARCHAR data type in MySQL. I have the following query - CREATE TABLE table1 ( column1 NVARCHAR(10) );. This is ... ... <看更多>
个人博客:https://joyohub.com/ 微信公众号:Joyo说在Mysql中表示字符串类型的有char、varchar、text 它们之间有什么区别呢?用到什么场景才更加合适 ... ... <看更多>
The performance difference is mainly due to the fact, that text datatype columns are always copied to temporary tables on disk, because the memory engine ... ... <看更多>
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MySQL 4.1版本之前,varchar的最大长度是255 byte字节(也有一说是5.0.3版本之前)。查了下这个版本发布都是2004年的事情了。惯性真恐怖,我可不相信 ... ... <看更多>