sqlt-diff man page
sqlt-diff — find the differences b/w two schemas
For a list of all valid parsers:
To diff two schemas:
sqlt-diff [options] file_name1=parser1 file_name2=parser2
-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
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
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).
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>)] ;
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.
Ken Youens-Clark <email@example.com>.