176 lines
6.5 KiB
Plaintext
176 lines
6.5 KiB
Plaintext
'\"
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.\" tdbc_mysql.n --
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.\"
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.\" Copyright (c) 2008 by Kevin B. Kenny.
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.\"
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.\" See the file "license.terms" for information on usage and redistribution of
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.\" this file, and for a DISCLAIMER OF ALL WARRANTIES.
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.TH "tdbc::mysql" n 8.6 Tcl "Tcl Database Connectivity"
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.\" .so man.macros
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..
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..
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.RE
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..
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.BS
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.SH "NAME"
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tdbc::mysql \- TDBC-MYSQL bridge
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.SH "SYNOPSIS"
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package require \fBtdbc::mysql 1.0\fR
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.sp
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\fBtdbc::mysql::connection create\fR \fIdb\fR ?\fI-option value...\fR?
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.br
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\fBtdbc::mysql::connection new\fR ?\fI-option value...\fR?
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.sp
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\fBtdbc::mysql::datasources\fR ?\fB-system\fR|\fB-user\fR?
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.sp
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\fBtdbc::mysql::drivers\fR
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.sp
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\fBtdbc::mysql::datasource\fR \fIcommand\fR \fIdriverName\fR ?\fIkeyword\fR-\fIvalue\fR?...
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.BE
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.SH "DESCRIPTION"
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.PP
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The \fBtdbc::mysql\fR driver provides a database interface that conforms
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to Tcl DataBase Connectivity (TDBC) and allows a Tcl script to connect
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to a MySQL database.
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.PP
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Connection to an MYSQL database is established by invoking
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\fBtdbc::mysql::connection create\fR, passing it the name to give the
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database handle and a set of \fI-option-value\fR pairs. The available
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options are enumerated under CONNECTION OPTIONS below.
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As an alternative, \fBtdbc::mysql::connection new\fR may be used to create
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a database connection with an automatically assigned name. The return value
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from \fBtdbc::mysql::connection new\fR is the name that was chosen for the
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connection handle.
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.PP
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The side effect of \fBtdbc::mysql::connection create\fR is to create a
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new database connection.. See \fBtdbc::connection(n)\fR for the
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details of how to use the connection to manipulate a database.
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.SH "CONNECTION OPTIONS"
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.PP
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The \fBtdbc::mysql::connection create\fR object command supports the
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\fB-encoding\fR, \fB-isolation\fR, \fB-readonly\fR and \fB-timeout\fR
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options common to all TDBC drivers. The \fB-encoding\fR option will
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always fail unless the encoding is \fButf-8\fR; the database connection
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always uses UTF-8 encoding to be able to transfer arbitrary Unicode
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characters. The \fB-readonly\fR option must be \fB0\fR, because
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MySQL does not offer read-only connections.
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.PP
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In addition, the following options are recognized:
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.IP "\fB-host\fR \fIhostname\fR"
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Connects to the host specified by \fIhostname\fR. This option must be
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set on the initial creation of the connection; it cannot be changed
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after connecting. Default is to connect to the local host.
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.IP "\fB-port\fR \fInumber\fR"
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Connects to a MySQL server listening on the port specified by \fInumber\fR.
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This option may not be changed after connecting. It is used only when
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\fIhost\fR is specified and is not \fBlocalhost\fR.
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.IP "\fB-socket\fR \fIpath\fR"
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Connects to a MySQL server listening on the Unix socket or named
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pipe specified by \fIpath\fR . This option may not be changed after connecting.
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It is used only when \fI-host\fR is not specified or is \fBlocalhost\fR.
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.IP "\fB-user\fR \fIname\fR"
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Presents \fIname\fR as the user name to the MySQL server. Default is the
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current user ID.
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.IP "\fB-passwd\fR \fIpassword\fR"
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.IP "\fB-password\fR \fIpassword\fR"
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These two options are synonymous. They present the given \fIpassword\fR as
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the user's password to the MySQL server. Default is not to present a password.
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.IP "\fB-database\fR \fIname\fR"
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.IP "\fB-db\fR \fIname\fR"
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These two options are synonymous. They present the given \fIname\fR as the
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name of the default database to use in MySQL queries. If not specified,
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the default database for the current user is used.
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.IP "\fB-interactive\fR \fIflag\fR"
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The \fIflag\fR value must be a Boolean value. If it is \fBtrue\fR (or
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any equivalent), the default timeout is set for an interactive user,
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otherwise, the default timeout is set for a batch user. This option
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is meaningful only on initial connection. When using the \fBconfigure\fR
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method on a MySQL connection use the \fB-timeout\fR option to set the
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timeout desired.
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.IP \fB-ssl_ca\fR \fIstring\fR
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.IP \fB-ssl_capath\fR \fIstring\fR
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.IP \fB-ssl_cert\fR \fIstring\fR
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.IP \fB-ssl_cipher\fR \fIstring\fR
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.IP \fB-ssl_key\fR \fIstring\fR
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These five options set the certificate authority, certificate authority
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search path, SSL certificate, transfer cipher, and SSL key to the
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given \fIstring\fR arguments. These options may be specified only
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on initial connection to a database, not in the \fBconfigure\fR method
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of an existing connection. Default is not to use SSL.
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.SH EXAMPLES
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.PP
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.CS
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tdbc::mysql::connection -user joe -passwd sesame -db joes_database
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.CE
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Connects to the MySQL server on the local host using the default
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connection method, presenting user ID 'joe' and password 'sesame'.
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Uses 'joes_database' as the default database name.
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.SH "ADDITIONAL CONNECTION METHODS"
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In addition to the usual methods on the tdbc::connection(n) object,
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connections to a MySQL database support one additional method:
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.IP "\fI$connection\fR \fBevaldirect\fR \fIsqlStatement\fR"
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This method takes the given \fIsqlStatement\fR and interprets as
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MySQL native SQL code and evaluates it without preparing it. The
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statement may not contain variable substitutions. The result set
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is returned as a list of lists, with each sublist being the list
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of columns of a result row formatted as character strings. Note that
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the string formatting is done by MySQL and not by Tcl, so details
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like the appearance of floating point numbers may differ.
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\fIThis command is not recommended\fR for anything where the usual
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\fIprepare\fR or \fIpreparecall\fR methods work correctly. It is
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provided so that data management language statements that are
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not implemented in MySQL's prepared statement API, such as
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\fBCREATE DATABASE\fR or \fBCREATE PROCEDURE\fR, can be executed.
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.SH "SEE ALSO"
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tdbc(n), tdbc::connection(n), tdbc::resultset(n), tdbc::statement(n)
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.SH "KEYWORDS"
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TDBC, SQL, MySQL, database, connectivity, connection
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.SH "COPYRIGHT"
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Copyright (c) 2009 by Kevin B. Kenny.
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.\" Local Variables:
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.\" mode: nroff
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.\" End:
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.\"
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