Re-fixup of line length in InnoDB examples. Should be <76.

big tables in pieces:

@example

INSERT INTO newtable SELECT * FROM oldtable WHERE yourkey > something

                                             AND yourkey <= somethingelse;

INSERT INTO newtable SELECT * FROM oldtable

   WHERE yourkey > something AND yourkey <= somethingelse;

@end example

After all data has been inserted you can rename the tables.

The syntax of a foreign key constraint definition in InnoDB:

@example

FOREIGN KEY (index_col_name, ...) REFERENCES table_name (index_col_name, ...)

FOREIGN KEY (index_col_name, ...)

  REFERENCES table_name (index_col_name, ...)

@end example

Starting from version 3.23.50 the InnoDB parser allows you to

use also backquotes around table and column names in the above

use backquotes (`) around table and column names in the above

definition.

An example:

Starting from version 3.23.50 InnoDB allows you to add a new

foreign key constraint to a table through

@example

ALTER TABLE yourtablename ADD CONSTRAINT FOREIGN KEY (...) REFERENCES anothertablename(...)

ALTER TABLE yourtablename

  ADD CONSTRAINT FOREIGN KEY (...) REFERENCES anothertablename(...)

@end example

Remember to create the required indexes first, though.