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CHECKSUM TABLE
Syntax
CHECKSUM TABLE tbl_name[,tbl_name ...] [ QUICK | EXTENDED ] |
Reports a table checksum. If QUICK
is specified, live table
checksum is reported, or NULL
if the table does not support live
checksum. This is very fast. In EXTENDED
mode the whole table is read row by row and the checksum is
calculated. This can be very slow for large tables. By default - with
neither QUICK
nor EXTENDED
- MySQL returns live checksum
if the table support it and scans the table otherwise.
This statement is implemented in MySQL 4.1.1.