07-02-2003
I'm not sure if this is what you're asking, but you can cast a char to an int.
char c;
c='A';
printf("%d \n", (int) c);
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LEARN ABOUT DEBIAN
alzabo::mysql
Alzabo::MySQL(3pm) User Contributed Perl Documentation Alzabo::MySQL(3pm)
NAME
Alzabo::MySQL - Alzabo and MySQL
DESCRIPTION
This documentation is about what special support Alzabo has for MySQL, as well as what is lacking.
MySQL support is based on the 3.23.* release series, with some support for features that are starting to appear in the 4.0.* releases.
Earlier versions of MySQL will probably work with Alzabo, though Alzabo cannot magically make these releases support new features like
fulltext indexes.
Indexes
o Alzabo supports the ability to specify prefixes when adding an index. Prefixes are required when attempting to index any sort of text
or blob column.
o Alzabo supports the creation of fulltext indexes and their use in SELECT and WHERE clauses. This includes the ability to get back the
score given for a match as part of a select, using the "function" or "select" methods of either table or schema objects.
Reverse Engineering
o When reverse engineering a schema, Alzabo knows that MySQL has "default defaults" for certain column types. For example, if a DATE
column is specified as NOT NULL but is not assigned a default, MySQL gives this column a default of '0000-00-00'.
Because Alzabo knows about this, it will ignore these defaults when reverse engineering an RDBMS.
o Similarly, Alzabo knows that MySQL assigns default "lengths" to many column types. For example, if given INTEGER as a column type,
MySQL will convert this to INTEGER(11) or INTEGER(10), depending on the version of MySQL being used.
Again, Alzabo ignores these lengths when reverse engineering a schema.
o All of this may lead to apparent inconsistencies when using the with the "Alzabo::Create::Schema->sync_backend" or "Alzabo::Cre-
ate::Schema->sync_backend_sql" methods. If you are using this feature from the web based schema creator, you will see that even imme-
diately after running the "sync_backend()" method, Alzabo may still think there are differences between the two schemas. This is not a
problem, as running the SQL Alzabo generates will not actually change your database.
Transactions
Alzabo will try to use transactions whenever appropriate. Unfortunately, there is no way to determine whether or not a given table
supports transactions so Alzabo simply calls DBI's "begin_work()" method, whether or not this will actually do anything.
Constraints and Foreign Keys
o Column constraints are treated as column attributes.
o Foreign key constraints are not generated when generating SQL for a MySQL schema. This will probably change in the future.
Table Types
These can be specified as a table attribute.
perl v5.8.8 2007-12-23 Alzabo::MySQL(3pm)