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Mysql统计库表大小sql整理

霍华德 2022-05-27 阅读 61

标签: mysql ide 数据库 Java 编程语言

1. 查看该数据库实例下所有库大小，得到的结果是以MB为单位

1 2 3 4 5 6 7	`mysql>` `select` `table_schema,sum(data_length)/1024/1024` `as` `data_length,sum(index_length)/1024/1024 \` `as` `index_length,sum(data_length+index_length)/1024/1024` `as` `sum` `from` `information_schema.tables;` `+--------------------+---------------+--------------+---------------+` `\| table_schema \| data_length \| index_length \| sum \|` `+--------------------+---------------+--------------+---------------+` `\| information_schema \| 2734.92757511 \| 86.27539063 \| 2821.20296574 \|` `+--------------------+---------------+--------------+---------------+`

2、查看该实例下各个库大小

1 2 3 4 5 6 7 8 9 10	`mysql>` `select` `table_schema, sum(data_length+index_length)/1024/1024` `as` `total_mb, \` `sum(data_length)/1024/1024` `as` `data_mb, sum(index_length)/1024/1024` `as` `index_mb, \` `count(*)` `as` `tables, curdate()` `as` `today` `from` `information_schema.tables` `group` `by` `table_schema order` `by` `2 desc;` `+--------------------+---------------+---------------+-------------+--------+------------+` `\| table_schema \| total_mb \| data_mb \| index_mb \| tables \| today \|` `+--------------------+---------------+---------------+-------------+--------+------------+` `\| data_1234567890 \| 2820.59610939 \| 2734.39689064 \| 86.19921875 \| 65 \| 2015-11-02 \|` `\| mysql \| 0.60579967 \| 0.53744030 \| 0.06835938 \| 14 \| 2015-11-02 \|` `\| information_schema \| 0.00781250 \| 0.00000000 \| 0.00781250 \| 35 \| 2015-11-02 \|` `+--------------------+---------------+---------------+-------------+--------+------------+`

3、查看单个库的大小

1 2 3 4 5 6 7 8 9 10	`mysql>` `select` `concat(truncate(sum(data_length)/1024/1024,2),``'mb'``)` `as` `data_size, \` `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_tyb2014'``;` `+-----------+------------------+-----------+------------+` `\| data_size \| max_data_size \| data_free \| index_size \|` `+-----------+------------------+-----------+------------+` `\| 2734.40mb \| 83483426815.99mb \| 14.06mb \| 86.19mb \|` `+-----------+------------------+-----------+------------+`

4、查看单个表的状态

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21	`mysql> show table status` `from` `data_1234567890` `where` `name =` `'data_1234567890_ss'` `\G` `************************* 1. row *************************` `Name: data_1234567890_ss` `Engine: InnoDB` `Version: 10` `Row_format: Compact` `Rows: 840065` `Avg_row_length: 477` `Data_length: 401473536` `Max_data_length: 0` `Index_length: 0` `Data_free: 6291456` `Auto_increment: 882251` `Create_time: 2015-09-07 17:24:18` `Update_time: NULL` `Check_time: NULL` `Collation: utf8_general_ci` `Checksum: NULL` `Create_options:` `Comment:` `1 row` `in` `set` `(0.00 sec)`

5、查看单库下所有表的状态

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72	`mysql>` `select` `table_name, (data_length/1024/1024)` `as` `data_mb , (index_length/1024/1024) \` `as` `index_mb, ((data_length+index_length)/1024/1024)` `as` `all_mb, table_rows \` `from` `information_schema.tables` `where` `table_schema =` `'data_1234567890'``;` `+---------------------------+---------------+-------------+---------------+------------+` `\| table_name \| data_mb \| index_mb \| all_mb \| table_rows \|` `+---------------------------+---------------+-------------+---------------+------------+` `\| ss_daccount \| 0.23437500 \| 0.10937500 \| 0.34375000 \| 4481 \|` `\| ss_daccount_log \| 2.48262787 \| 0.58496094 \| 3.06758881 \| 27248 \|` `\| ss_daccount_type \| 0.00025558 \| 0.00195313 \| 0.00220871 \| 8 \|` `\| ss_daccountlog \| 221.61502457 \| 22.66113281 \| 244.27615738 \| 1045462 \|` `\| ss_dactives \| 0.00178146 \| 0.00195313 \| 0.00373459 \| 7 \|` `\| ss_dadmin \| 0.00268173 \| 0.00195313 \| 0.00463486 \| 19 \|` `\| ss_dadmin_log \| 0.36599731 \| 0.05175781 \| 0.41775513 \| 5191 \|` `\| ss_dadmin_nav \| 0.01562500 \| 0.00000000 \| 0.01562500 \| 46 \|` `\| ss_dadmin_role \| 0.01562500 \| 0.01562500 \| 0.03125000 \| 5 \|` `\| ss_dadvertisement \| 0.07812500 \| 0.00000000 \| 0.07812500 \| 486 \|` `\| ss_dadvertisement_click \| 382.87500000 \| 0.00000000 \| 382.87500000 \| 1023350 \|` `\| ss_dadvertisement_content \| 0.10937500 \| 0.01562500 \| 0.12500000 \| 105 \|` `\| ss_dapplication \| 3.23010635 \| 0.02441406 \| 3.25452042 \| 1859 \|` `\| ss_dapplication_bak \| 2.25843048 \| 0.01269531 \| 2.27112579 \| 738 \|` `\| ss_dapplication_comment \| 0.88685226 \| 0.05566406 \| 0.94251633 \| 5454 \|` `\| ss_dapplication_material \| 0.00187683 \| 0.00195313 \| 0.00382996 \| 16 \|` `\| ss_dapplication_user \| 0.90316010 \| 0.10839844 \| 1.01155853 \| 8861 \|` `\| ss_darea \| 1.05803299 \| 0.88769531 \| 1.94572830 \| 45051 \|` `\| ss_dauthentication \| 0.00072861 \| 0.00195313 \| 0.00268173 \| 13 \|` `\| ss_dbbs_relatedlink \| 0.01562500 \| 0.00000000 \| 0.01562500 \| 12 \|` `\| ss_dborrow \| 0.04732895 \| 0.00390625 \| 0.05123520 \| 153 \|` `\| ss_dborrow_collection \| 27.61576080 \| 13.99023438 \| 41.60599518 \| 221169 \|` `\| ss_dborrow_lz \| 0.00000000 \| 0.00097656 \| 0.00097656 \| 0 \|` `\| ss_dborrow_tender \| 24.62931824 \| 18.27050781 \| 42.89982605 \| 147411 \|` `\| ss_dcash \| 6.40177155 \| 1.97949219 \| 8.38126373 \| 42807 \|` `\| ss_dcp_block \| 0.04687500 \| 0.01562500 \| 0.06250000 \| 37 \|` `\| ss_dcp_item \| 0.09375000 \| 0.00000000 \| 0.09375000 \| 134 \|` `\| ss_dedu_member \| 0.01562500 \| 0.00000000 \| 0.01562500 \| 13 \|` `\| ss_dinfo_article \| 78.76256561 \| 1.19433594 \| 79.95690155 \| 10038 \|` `\| ss_dinfo_channel \| 0.01562500 \| 0.00000000 \| 0.01562500 \| 56 \|` `\| ss_dinfo_comment \| 0.32812500 \| 0.00000000 \| 0.32812500 \| 1206 \|` `\| ss_dinfo_nav \| 0.01562500 \| 0.00000000 \| 0.01562500 \| 27 \|` `\| ss_dinfo_p2pdata \| 0.90237427 \| 0.29101563 \| 1.19338989 \| 29569 \|` `\| ss_dinfo_p2pdata_0 \| 0.04687500 \| 0.00000000 \| 0.04687500 \| 275 \|` `\| ss_dinfo_photo \| 0.23437500 \| 0.00000000 \| 0.23437500 \| 71 \|` `\| ss_dinfo_project \| 0.06250000 \| 0.00000000 \| 0.06250000 \| 67 \|` `\| ss_dinfo_seekdata \| 35.53404236 \| 0.64062500 \| 36.17466736 \| 5002 \|` `\| ss_dinfo_tagname \| 0.01562500 \| 0.00000000 \| 0.01562500 \| 18 \|` `\| ss_dinfo_testinfo \| 0.01562500 \| 0.00000000 \| 0.01562500 \| 21 \|` `\| ss_dinfo_video \| 0.91273117 \| 0.00781250 \| 0.92054367 \| 207 \|` `\| ss_djiao \| 0.01562500 \| 0.00000000 \| 0.01562500 \| 3 \|` `\| ss_dliberty \| 3.79615784 \| 0.27734375 \| 4.07350159 \| 23108 \|` `\| ss_dliberty_item \| 3.08350754 \| 1.24414063 \| 4.32764816 \| 51113 \|` `\| ss_dloan \| 0.00000000 \| 0.00390625 \| 0.00390625 \| 0 \|` `\| ss_dmarke \| 0.01973343 \| 0.00390625 \| 0.02363968 \| 125 \|` `\| ss_dmedal \| 0.00000000 \| 0.00097656 \| 0.00097656 \| 0 \|` `\| ss_dmember_comment \| 0.00995636 \| 0.00195313 \| 0.01190948 \| 87 \|` `\| ss_dmembers \| 6.73762321 \| 0.33203125 \| 7.06965446 \| 30717 \|` `\| ss_dmembers_identity \| 0.10503769 \| 0.00976563 \| 0.11480331 \| 784 \|` `\| ss_dnewyear \| 0.00308609 \| 0.00195313 \| 0.00503922 \| 32 \|` `\| ss_drecharge \| 29.13045883 \| 10.23925781 \| 39.36971664 \| 221220 \|` `\| ss_dsalon_click \| 0.00586700 \| 0.00195313 \| 0.00782013 \| 31 \|` `\| ss_dsalon_comment \| 0.07812500 \| 0.00000000 \| 0.07812500 \| 213 \|` `\| ss_dsalon_content \| 0.14062500 \| 0.00000000 \| 0.14062500 \| 653 \|` `\| ss_dsalon_ticket \| 0.00093079 \| 0.00195313 \| 0.00288391 \| 20 \|` `\| ss_dsignin \| 0.37500000 \| 0.00000000 \| 0.37500000 \| 7177 \|` `\| ss_dtemplate \| 0.15721893 \| 0.03808594 \| 0.19530487 \| 2838 \|` `\| ss_dwd_answers \| 2.51562500 \| 0.00000000 \| 2.51562500 \| 5420 \|` `\| ss_dwd_classify \| 0.01562500 \| 0.00000000 \| 0.01562500 \| 12 \|` `\| ss_dwd_collection \| 0.01562500 \| 0.00000000 \| 0.01562500 \| 2 \|` `\| ss_dwd_questions \| 1.51562500 \| 0.00000000 \| 1.51562500 \| 3614 \|` `\| ss_dwget \| 1894.69999695 \| 13.02929688 \| 1907.72929382 \| 1187574 \|` `\| ss_dzhuanti_bolanhui \| 0.00419235 \| 0.00195313 \| 0.00614548 \| 20 \|` `\| click \| 0.00000000 \| 0.00097656 \| 0.00097656 \| 0 \|` `\| ss_account \| 0.14062500 \| 0.07812500 \| 0.21875000 \| 1871 \|` `+---------------------------+---------------+-------------+---------------+------------+`

　

作者：踏雪无痕

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