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disk, you can use to rescue the file Oh!Note: Property settings are common for a and I settings, and many settings must be root to setMore detailed use of your own manBecause these properties are hidden properties, you need to lsattr to see the propertyLsattr (show file hidden properties)#lsattr [-adr] File or directoryOptions and Parameters:-A: The properties of the hidden file are also displayed;-D: If a directory is followed, lists only the proper

External locks and improve performance.Use the hash value of the application layer instead of the long key code:SELECT * FROM table_name WHERE hash = MD5 (concat (col1, col2) ANDCol_1 = 'constant' AND col_2 = 'constant'Save the BLOB that needs to be accessed as a file in the file, and save only the file name in the database.Deleting all rows is faster than deleting a majority of rows.If SQL is not fast enough, study the underlying interfaces for accessing data.34,Benefits from using MySQL 3.23

Port:mysql service. Default is 3306, number typeCharSet: Database encoding Character setMore information on the parameters can be found here http://mysql-python.sourceforge.net/MySQLdb.htmlSometimes, for code specification, it is recommended to write the configuration of all databases in a dictionary, as follows:Def connect_mysql (): Db_config = {' host ': ' 192.168.48.128 ', ' Port ': 3306, ' user ': ' Xiang ',' passwd ': ' 123456 ', ' db ': ' Pytho

only the file name in the database.Deleting all rows is faster than deleting a majority of rows.If SQL is not fast enough, study the underlying interfaces for accessing data. -------------------------------------------------------------------------------- 34. Benefits of using MySQL 3.23 MyISAM: Portable big table formatHEAP: tables in memoryBerkeley DB: a table that supports transactions.Many restrictionsDynamic Character SetMore STATUS variables

every day, brush your teeth on time, class on time, eat on time, and get out on timeXI, go to the bathroom on time .... Even the recipes for three meals a day are rarely changed. This way, if a person does not remember her, she will not be able to practice as a senior.In a private enterprise, she was taken to the fancy of her hometown boss. When she became her girlfriend, the boss gave her a house. At that time, the value was 1.5 million. HoweverLater, she made a big surprise to all of us. Half