SELECT TABLE_NAME AS "Table", round(((data_length + index_length) / 1024 / 1024), 2) AS Size_in_MB FROM information_schema.TABLES WHERE table_schema = 'my_db_name' ORDER BY Size_in_MB DESC This can be very useful when debugging for instance in figuring out which rogue plugin/modu...
创建一个存储过程,用于查询表的大小: DELIMITER //CREATE PROCEDURE get_table_size(IN database_name VARCHAR(255), IN table_name VARCHAR(255))BEGINSELECT table_name, table_rows, data_length, index_lengthFROM information_schema.tablesWHERE table_schema = database_name AND table_name = table_name;...
a.table_name , concat(round(sum(DATA_LENGTH / 1024 / 1024) + sum(INDEX_LENGTH / 1024 / 1024) ,2) ,'MB') total_size , concat(round(sum(DATA_LENGTH / 1024 / 1024) , 2) ,'MB') AS data_size , concat(round(sum(INDEX_LENGTH / 1024 / 1024) , 2) ,'MB') AS index_size FR...
then what will be the size of my table? do i need 'SUM_OVER_ALL_BTREE_KEYS(max_length_of_key + sizeof(char*) × 4)' as i have only hash keys? thanks in advance :) Shantonu Subject Views Written By Posted How to get size of memory table??
一:引言 1118 - Row size too large. The maximum row size for the used table type, not counting BLOBs, is 65535. This includes storage overhead, check the
concat(truncate(sum(max_data_length)/1024/1024,2),'mb') as max_data_size, \ concat(truncate(sum(data_free)/1024/1024,2),'mb') as data_free, \ concat(truncate(sum(index_length)/1024/1024,2),'mb') as index_size\ from information_schema.tables where table_schema = 'erongtu_tyb20...
12.4 Limits on Table Size The effective maximum table size for MySQL databases is usually determined by operating system constraints on file sizes, not by MySQL internal limits. For up-to-date information operating system file size limits, refer to the documentation specific to your operating system...
query_cache_size query_cache_limit query_cache_min_res_unit query_cache_wlock_invalidate 1.1.2 事务相关参数 tx_isolation 和 tx_read_only 在8.0.3中移除,使用参数transaction_isolation 和transaction_read_only 替代 1.1.3 日志相关参数 expire_logs_days 设置binlog保留天数,从MySQL 8.0.11开始已经废弃,...
你可以通过以下 SQL 语句来查看当前的max_heap_table_size设置: SHOWVARIABLESLIKE'max_heap_table_size'; 1. 如果需要改变这一值,可以通过以下命令来设置,注意这里只能在服务器运行状态下进行设置,重启后可能会失效: SETGLOBALmax_heap_table_size=256000000; ...
Table size vs amountPosted by: Thomas Schmitt Date: June 01, 2023 04:58PM Hello, I do not have experience in DB design and it would be one terrible time/usage trade for me, to learn MySQL design considerations from zero for my first DB project since university and probably the last...