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

SQLT-DIFF-OLD(1p)					User Contributed Perl Documentation					 SQLT-DIFF-OLD(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=parser file_name2=parser

       Options:

	 -d|--debug   Show debugging info

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/DROP TABLE" and "CREATE INDEX" statements are not generated by the Producer, unfortunately, and may require massaging before being
       passed to your target database.

AUTHOR

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

SEE ALSO

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

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

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

NAME

       sqlt-diagram - Automatically create a diagram from a database schema

SYNOPSIS

	 ./sqlt-diagram -d|-f|--from|--db=db_parser [options] schema.sql

	 Options:

	   -o|--output	      Output file name (default STDOUT)
	   -i|--image	      Output image type ("png" or "jpeg," default "png")
	   -t|--title	      Title to give schema
	   -c|--cols	      Number of columns
	   -n|--no-lines      Don't draw lines
	   --font-size	      Font size ("small," "medium," "large," or "huge,"
			      default "medium")
	   --gutter	      Gutter size between tables
	   --color	      Add colors
	   --show-fk-only     Only show fields that act as primary
			      or foreign keys

	   --natural-join     Perform natural joins
	   --natural-join-pk  Perform natural joins from primary keys only
	   -s|--skip	      Fields to skip in natural joins
	   --skip-tables      Comma-separated list of table names to exclude
	   --skip-tables-like Comma-separated list of regexen to exclude tables
	   --debug	      Print debugging information

DESCRIPTION

       This script will create a picture of your schema.  Only the database driver argument (for SQL::Translator) is required.	If no output file
       name is given, then image will be printed to STDOUT, so you should redirect the output into a file.

       The default action is to assume the presence of foreign key relationships defined via "REFERENCES" or "FOREIGN KEY" constraints on the
       tables.	If you are parsing the schema of a file that does not have these, you will find the natural join options helpful.  With natural
       joins, like-named fields will be considered foreign keys.  This can prove too permissive, however, as you probably don't want a field
       called "name" to be considered a foreign key, so you could include it in the "skip" option, and all fields called "name" will be excluded
       from natural joins.  A more efficient method, however, might be to simply deduce the foriegn keys from primary keys to other fields named
       the same in other tables.  Use the "natural-join-pk" option to achieve this.

AUTHOR

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

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