- LICENSE AND COPYRIGHT
IMDB::Local::DB::Base - Object to manage database abstraction with handy entry points.
This module presents one set of handy subroutines around a DBI connection. The interface is not well document, only as much as it is needed for the IMDB::Local::DB developer requires. It is meant to be extended.
Disconnect from the database. Note that for those lazy programmers that fail to call disconnect, the disconnect will be called when the object is destructed through perl's DESTROY.
Commit a DBI transaction (should only be used if db_AutoCommit was zero).
Check to see if there has been previous successful 'connect' call.
Retrieve the last inserted key for a given table and primaryKey.
Execute a sql statement and return 1 upon success and 0 upon success. Upon failure, carp() is called with the sql statement.
Return DBI->err() to retrieve error status of previous call to runSQL.
Return DBI->errstr() to retrieve error status of previous call to runSQL.
Return DBI->prepare() for a given statement.
Wrapper for calling DBI->prepare() and DBI->exeute() fora given query. Upon success the DBI->prepare() handle is returned. Upon failure, warn() is called with the query statement string and undef is returned.
Execute a table insertion and return the created primaryKey (if specified). If primaryKey is not defined, 1 is returned upon success.
Construct an sql query using a hash containing:
fields - required array of fields to select tables - required array of tables to select from wheres - optional array of where clauses to include (all and'd together) groupbys - optional array of group by clauses to include sortByField - optional field to sort by (if prefixed with -, then sort is reversed) orderbys - optional array of order by clauses to include offset - offset of returned rows limit - optional integer value to limit # of returned rows
Call query2SQLStatement with the given hash arguments and return a IMDB::Local::DB::RecordIterator handle.
In addition to the query2SQLStatement arguments the following are optional: cacheBy - set cacheBy value in returned IMDB::Local::DB::RecordIterator handle. If not specified, limit is used.
Check to see at least one row exists with value in 'column' in the specified 'table'
Execute the given sql statement and return the value in a single scalar value
Execute the given sql statement and return the value cast as an integer (ie int(returnvalue))
Execute the given sql statement and return an array with all the results.
Execute the given sql statement and return an array of arrays, each containing a row of values
Execute the given sql statement and return a reference to a hash with the result
Execute the given sql statement and return a reference ot a hash containing the given row.
Retrieve a list of tables available. Created Tables or Views created after connect() may not be included.
Check to see if a given table exists. Uses table_list.
Check to see if a given table exists. Uses table_list.
Retrieve information about a given column in a table. Changes to columns made after connect() may not be included.
Returns a list of columns in a database/driver specific order containing: COLUMN_NAME - name of the column TYPE_NAME - data type (if available) COLUMN_SIZE - size of column data (if available) IS_NULL - true/false if column is nullable IS_PRIMARY_KEY - 1 or 0 if column is a primary key
Retrieve a list of column names in column_list order.
Run an sql query and output the result to the specified file in Text::CSV format
Parse the given CVS file (which must have column names that match a the given table) and insert each row as a new row into the specified table.
Upon success, returns > 0, number of rows successfully inserted. Returns 0 if open() on the given file fails.
Retrieve the # of rows in a given table.
Retrieve a reference to an array of arrays, each sub-array containing [table, #ofRows, data-size-in-KBs, index-size-in-KBs]
<jerry.veldhuis at gmail.com>
Please report any bugs or feature requests to
bug-imdb-local at rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=IMDB-Local. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.
You can find documentation for this module with the perldoc command.
You can also look for information at:
RT: CPAN's request tracker (report bugs here)
AnnoCPAN: Annotated CPAN documentation
Copyright 2015 jerryv.
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