Howard's changes

of @code{4} is retrieved as @code{00004}.  Note that if you store larger

values than the display width in an integer column, you may experience

problems when @strong{MySQL} generates temporary tables for some

complicated joins, as in these cases @strong{MySQL} will trust that the

complicated joins, as in these cases @strong{MySQL} trusts that the

data did fit into the original column width.

All integral types can have an optional (non-standard) attribute

into the table.

@item

The @code{RAID_TYPE} option will help you to break the 2G/4G limit on

Operating Systems that don't support big files. You can get also more speed

operating systems that don't support big files. You can get also more speed

from the I/O bottleneck by putting @code{RAID} directories on different

physical disks. @code{RAID_TYPE} will work on any OS, as long as you have

configured @strong{MySQL} with @code{--with-raid}.  For now the only allowed

rows, any rows that duplicate an existing @code{PRIMARY} or @code{UNIQUE}

key in the table are ignored and are not inserted.  If you do not specify

@code{IGNORE}, the insert is aborted if there is any row that duplicates an

existing key value.  You can check with the C API function

existing key value.  You can determine with the C API function

@code{mysql_info()} how many rows were inserted into the table.

@item

The value of the @code{--basedir} option.

@item @code{bdb_cache_size}

The buffer that is allocated to cache index and rows for @code{BDB} tables.

If you don't use @code{BDB} tables, you should set this to 0 or

start @code{mysqld} with @code{--skip-bdb} o not waste memory for this cache.

The buffer that is allocated to cache index and rows for @code{BDB}

tables.  If you don't use @code{BDB} tables, you should set this to 0 or

start @code{mysqld} with @code{--skip-bdb} to not waste memory for this

cache.

@item @code{bdb_home}

The value of the @code{--bdb-home} option.

@cindex changing, column order

@cindex tables, changing column order

@node Change column order,  , ALTER TABLE problems, Problems

@section How To Change the Order of Columns in a Table

@Section How To Change the Order of Columns in a Table

The whole point of SQL is to abstract the application from the data

storage format.  You should always specify the order in which you wish to

make a SQL level backup of a table, you can use @code{SELECT INTO OUTFILE}.

Another way to back up a database is to use the @code{mysqldump} program:

@xref{mysqldump}. :

@xref{mysqldump}:

@enumerate

@item

@code{myisamchk -r} first.  That should work in 99.9% of all cases.  If

@code{myisamchk} fails, try the following procedure:

(This will only work if you have started @strong{MySQL} with

@code{--log-update}. @xref{Update log}.):

@code{--log-update}. @xref{Update log}):

@enumerate

@item

@item

If your are using the @strong{MySQL} perl DBD module you can read the options

from the @strong{MySQL} option files. @xref{Option files}.:

from the @strong{MySQL} option files. @xref{Option files}:

@example

$dsn = "DBI:mysql:test;mysql_read_default_group=client;"

The functions available in the C API are listed below and are described in

greater detail in the next section.

@xref{C API functions}.:

@xref{C API functions}:

@multitable @columnfractions .3 .7

@item @strong{mysql_affected_rows()} @tab

@itemize @bullet

@item @uref{http://www.mysql.com/Downloads/Contrib/ascend-radius-mysql-0.7.2.patch.gz,ascend-radius-mysql-0.7.2.patch.gz}

This is authentication and logging patch using @strong{MySQL} for

This is an authentication and logging patch using @strong{MySQL} for

Ascend-Radius. By @email{takeshi@@SoftAgency.co.jp}.

@item @uref{http://www.mysql.com/Downloads/Contrib/icradius-0.10.tar.gz, icradius 0.10}