Select all Open in new window 3ĚUTĚ-1014 14 ISLĚ-987 Since the natural sort order above is correct for alphanumerically sorting a text column, let's take a look at what is wrong. What's wrong with the natural sort order? Now that our data is setup and our baseline (natural) sorting is established as seen in our data section, we can start to examine things further.ġ. Results should appear similar to the below, barring any differences in auto-increment id: Select id, country, postalcode from country_postalcodes order by postalcode To test your data inserted ok and see the default textual sort, execute the following SQL statement: Insert sample data into table from previous step. Therefore, to play along you can use the following steps in MySQL to setup the sample data being referenced:Ī column for string data and a primary key will do, but let's try a table of postal codes by country to give a more real life example of the kind of unstructured data we may have to live with.Ĭreate table `country_postalcodes` ( `id` integer unsigned not null auto_increment, `country` varchar(3) not null, `postalcode` varchar(10) not null, primary key(`id`) ) +if a hyphen does exist, sort needs to treat text and numbers on either side of hyphen separatelyįrom this point forward, I will reference the above data scenario as table country_postalcodes. +sorting needs to order text and numbers separately
#ORACLE 10G PROGRAMMING A PRIMER CODE#
More experience on creating and executing DDL and other statements for T-SQL are also required as some code is only shown in MySQL syntax.ĭownload MS SQL Server Express and Management Tools Optionally, for those wanting to play with T-SQL examples as well, then MS SQL Server and a tool such as SQL Server Management Studio (SSMS) are also pre-requisites.
#ORACLE 10G PROGRAMMING A PRIMER HOW TO#
Please note that, although experience can be varied, all will need to have MySQL Server, a tool such as MySQL Query Browser, and a basic knowledge of how to execute SQL statements as pre-requisites.ĭownload MySQL Community Server and GUI Tools A Web Survey Management System.Custom Sorting in MySQL: Using IsNumeric() UDF. Oracle's Dynamic HTML Generation Package.
Oracle Web Programming with Java Servlets. Investment Portfolio Database Application.
What is PL/SQL? Data Types and Variables. MESSAGE: For all readers interested in Oracle 10G.ġ. KEY TOPICS: The Relational Data Model, Oracle SQL, PL/SQL, Web Programming with PL/SQL, Oracle JDBC, SQLJ: Embedded SQL in Java, Oracle Web Programming with Java Servlets, Oracle XML, Projects. It is ideal for students studying databases, and introduces the Oracle technology students need to know for a first database course. KEY MESSAGE: Oracle 10G Programming is a concise, streamlined guide to Oracle programming.
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