Updating a relational database php


21-Dec-2017 17:44

Class DB_Table_Database extends abstract base class DB_Table_Base.

Methods or properties that are inherited from DB_Table_Base are noted as such, and are indicated in the table of contents of this page with the notation "(from DB_Table_Base)".

This example is used in a number of places within the SDO literature.

See the examples section of the » Service Data Objects specification or the Examples section of the documentation for the SDO extension.

create table company ( id integer auto_increment, name char(20), employee_of_the_month integer, primary key(id) ); create table department ( id integer auto_increment, name char(20), location char(10), number integer(3), co_id integer, primary key(id) ); create table employee ( id integer auto_increment, name char(20), SN char(4), manager tinyint(1), dept_id integer, primary key(id) );create table company ( \ id integer not null generated by default as identity, \ name varchar(20), \ employee_of_the_month integer, \ primary key(id) ) create table department ( \ id integer not null generated by default as identity, \ name varchar(20), \ location varchar(10), \ number integer, \ co_id integer, \ primary key(id) ) create table employee ( \ id integer not null generated by default as identity, \ name varchar(20), \ SN char(4), \ manager smallint, \ dept_id integer, \ primary key(id) ) column on the employee table is they should contain the primary key of their containing company or department record, respectively. There is a third foreign key in this example, that from the columns represent multi-valued relationships: a company can contain many departments and a department can contain many employees.

This distinction will become evident when the remainder of the metadata picks out the company-department and department-employee relationships as containment relationships.

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Along the way, he provides practical advice, offers examples of best practices, and demonstrates refactoring techniques to improve existing code.

DB_Table_Database provides: Like DB_Table, DB_Table_Database wraps a DB or MDB2 database connection object.

The class is compatible with both PHP 4 and PHP 5, with the exception of one non-essential method: The from XML() method, which creates a DB_Table_Database object from an XML database schema, requires PHP 5.

The child DB_Table objects that are associated with RDBMS tables must all be instantiated first, and then added to (i.e., linked with) a parent DB_Table_Database object.

I have a My SQL database called csftdb and in that database there exists 1 table: articles.The Relational DAS throws exceptions in the event that it finds errors in the metadata or errors when executing SQL statements against the database.