sqlt-diffp - Online in the Cloud

PROGRAM:

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

· 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).

· 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>)] ;

· 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.

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