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sqlt-diff(1p) [debian man page]

SQLT-DIFF(1p)						User Contributed Perl Documentation					     SQLT-DIFF(1p)

NAME

       sqlt-diff - find the differences b/w two schemas

SYNOPSIS

       For help:

	 sqlt-diff -h|--help

       For a list of all valid parsers:

	 sqlt -l|--list

       To diff two schemas:

	 sqlt-diff [options] file_name1=parser1 file_name2=parser2

       Options:

	 -d|--debug   Show debugging info
	 -t|--trace   Turn on tracing for Parse::RecDescent
	 -c|--case-insensitive	 Compare tables/columns case-insensitively
	 --ignore-index-names	 Ignore index name differences
	 --ignore-constraint-names   Ignore constraint name differences
	 --mysql_parser_version=<#####> Specify a target MySQL parser version
					for dealing with /*! comments
	 --output-db=<Producer>  This Producer will be used instead of one
				 corresponding to parser1 to format output
				 for new tables
	 --ignore-view-sql    Ignore view SQL differences
	 --ignore-proc-sql    Ignore procedure SQL differences
	 --no-batch-alters    Do not clump multile alters to the same table into a
			      single ALTER TABLE statement where possible.
	 --quote=<character>  Use <character> to quote all table and field
			      names in statements

DESCRIPTION

       sqlt-diff is a utility for creating a file of SQL commands necessary to transform the first schema provided to the second.  While not yet
       exhaustive in its ability to mutate the entire schema, it will report the following

       o   New tables

	   Using the Producer class of the target (second) schema, any tables missing in the first schema will be generated in their entirety
	   (fields, constraints, indices).

       o   Missing/altered fields

	   Any fields missing or altered between the two schemas will be reported as:

	     ALTER TABLE <table_name>
	       [DROP <field_name>]
	       [CHANGE <field_name> <datatype> (<size>)] ;

       o   Missing/altered indices

	   Any indices missing or of a different type or on different fields will be indicated.  Indices that should be dropped will be reported
	   as such:

	     DROP INDEX <index_name> ON <table_name> ;

	   An index of a different type or on different fields will be reported as a new index as such:

	     CREATE [<index_type>] INDEX [<index_name>] ON <table_name>
	       ( <field_name>[,<field_name>] ) ;

       ALTER, CREATE, DROP statements are created by SQL::Translator::Producer::*, see there for support/problems.

       Currently (v0.0900), only MySQL is supported by this code.

AUTHOR

       Ken Youens-Clark <kclark@cpan.org>.

SEE ALSO

       SQL::Translator, <http://sqlfairy.sourceforge.net>.

perl v5.14.2							    2012-01-18							     SQLT-DIFF(1p)

Check Out this Related Man Page

SQL::Translator::Producer::MySQL(3pm)			User Contributed Perl Documentation		     SQL::Translator::Producer::MySQL(3pm)

NAME

       SQL::Translator::Producer::MySQL - MySQL-specific producer for SQL::Translator

SYNOPSIS

       Use via SQL::Translator:

	 use SQL::Translator;

	 my $t = SQL::Translator->new( parser => '...', producer => 'MySQL', '...' );
	 $t->translate;

DESCRIPTION

       This module will produce text output of the schema suitable for MySQL.  There are still some issues to be worked out with syntax
       differences between MySQL versions 3 and 4 ("SET foreign_key_checks," character sets for fields, etc.).

ARGUMENTS

       This producer takes a single optional producer_arg "mysql_version", which provides the desired version for the target database. By default
       MySQL v3 is assumed, and statements pertaining to any features introduced in later versions (e.g. CREATE VIEW) are not produced.

       Valid version specifiers for "mysql_version" are listed here

   Table Types
       Normally the tables will be created without any explicit table type given and so will use the MySQL default.

       Any tables involved in foreign key constraints automatically get a table type of InnoDB, unless this is overridden by setting the
       "mysql_table_type" extra attribute explicitly on the table.

   Extra attributes.
       The producer recognises the following extra attributes on the Schema objects.

       field.list
	   Set the list of allowed values for Enum fields.

       field.binary, field.unsigned, field.zerofill
	   Set the MySQL field options of the same name.

       field.renamed_from, table.renamed_from
	   Use when producing diffs to indicate that the current table/field has been renamed from the old name as given in the attribute value.

       table.mysql_table_type
	   Set the type of the table e.g. 'InnoDB', 'MyISAM'. This will be automatically set for tables involved in foreign key constraints if it
	   is not already set explicitly. See "Table Types".

	   Please note that the "ENGINE" option is the preferred method of specifying the MySQL storage engine to use, but this method still works
	   for backwards compatibility.

       table.mysql_charset, table.mysql_collate
	   Set the tables default charater set and collation order.

       field.mysql_charset, field.mysql_collate
	   Set the fields charater set and collation order.

SEE ALSO

       SQL::Translator, http://www.mysql.com/.

AUTHORS

       darren chamberlain <darren@cpan.org>, Ken Youens-Clark <kclark@cpan.org>.

perl v5.14.2							    2012-01-18				     SQL::Translator::Producer::MySQL(3pm)
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