How to Avoid table full errors in Mysql? _ MySQL-mysql tutorial

There are several ways for Mysql to avoid table full errors:

? You are using a MySQL server lower than Version 3.23, and the "in memory" temporary table exceeds the tmp_table_size byte. To avoid this problem, you can use the "-O tmp_table_size = val" option to increase the size of the temporary table in mysqld, or use the SQL option SQL _BIG_TABLES before issuing a problematic query.

You can also use the "-- big-tables" option to start mysqld. It is identical to SQL _BIG_TABLES for all queries.

This problem should not occur since MySQL 3.23. If the temporary table in memory exceeds tmp_table_size, the server automatically converts it to a disk-based MyISAM table.

? You are using an InnoDB table, which exceeds the InnoDB tablespace. In this case, the solution is to increase the InnoDB tablespace.

? You are using an ISAM or MyISAM table on an operating system that only supports 2 GB files. the data file or index file has reached this limit.

? You are using the MyISAM table, and the space required by the table exceeds the size allowed by the internal pointer. If MAX_ROWS table is not specified during table creation, MySQL uses the myisam_data_pointer_size system variable. The default value is 6 bytes, which can hold up to TB of data.

Use this statement to check the maximum data/index size:

Show table status from database LIKE 'tbl _ name ';
You can also use myisamchk-dv/path/to/table-index-file.

If the pointer size is too small, use alter table to correct the problem:

Alter table tbl_name MAX_ROWS = 1000000000 AVG_ROW_LENGTH = nnn;

AVG_ROW_LENGTH must be specified only for tables with BLOB or TEXT columns. In this case, MySQL cannot only optimize the required space based on the number of rows.