In MySQL, databases correspond to directories within the data directory. Each table within a database corresponds to at least one file within the database directory (and possibly more, depending on the storage engine). Triggers also correspond to files. Consequently, the case sensitivity of the ...
0Table and database names are stored on disk using the lettercase specified in theCREATE TABLEorCREATE DATABASEstatement. Name comparisons are case-sensitive. You shouldnotset this variable to 0 if you are running MySQL on a system that has case-insensitive file names (such as Windows or mac...
If the result of a string operation on an INFORMATION_SCHEMA column differs from expectations, a workaround is to use an explicit COLLATE clause to force a suitable collation (see Section 1.8.1, “Using COLLATE in SQL Statements”). For example, to perform a case-insensitive search, use COL...
depending on the storage engine). Triggers also correspond to files. Consequently, the case sensitivity of the underlying operating system plays a part in the case sensitivity of database, table, and
COLLATE clause to indicate which collation to use, the statement uses default collation for the character set. If this collation is inappropriate for the intended table use (for example, if it would change from a case-sensitive collation to a case-insensitive collation), specify a collation ...
MySQL中,一个库会对应一个文件夹,库里的表会则以文件的方式存放在文件夹内,所以,操作系统对大小写的敏感性决定了数据库和表的大小写敏感(MySQL有一个只读的系统变量lower_case_file_system,其值反映的正是当前文件系统是否区分大小写)因此:在Windows下Mysql的数据库和表名是大小写不敏感的,而在大多数类型的Unix...
1.容灾备份恢复必备条件MySQL 数据库开启了log-bin参数记录binlog日志功能,且主库于备份的从库都要开启binlo功能。 1.全量备份全量数据就是数据库中所有的数据,全量备份就是把数据库中所有的数据进行备份。 案例: 代码语言:javascript 代码运行次数:0
utf8_genera_ci不区分大小写,ci为case insensitive的缩写,即大小写不敏感; utf8_general_cs区分大小写,cs为case sensitive的缩写,即大小写敏感,但是目前MySQL版本中已经不支持类似于***_genera_cs的排序规则,直接使用utf8_bin替代; utf8_bin将字符串中的每一个字符用二进制数据存储,区分大小写。
I would like to perform a case insensitive search on a BLOB column. It needs to be a BLOB because some data is actually binary. My example statement is: select headline from ticker where message LIKE "%Peugeot%"; Problem is that this is case sensitive (message is the BLOB column). I ...
INNER INOUT INSENSITIVE INSERT INT INT1 INT2 INT3 INT4 INT8 INTEGER INTERVAL INTO IO_AFTER_GTIDS IO_BEFORE_GTIDS IS ITERATE J JOIN K KEY KEYS KILL L LEADING LEAVE LEFT LIKE LIMIT LINEAR LINES LOAD LOCALTIME LOCALTIMESTAMP LONG LONGBLOB LONGTEXT LOOP LOW_PRIORITY M MASTER_BIND MASTER_SSL...