The Structured Query Language provides the application programmer interface that allows data to be entered into, edited, and selected from most relational databases. It also provides users with suitable authorisation with the ability to create and edit the structures that hold the data.
This topic is presented on public courses
MySQL,
Deploying Java Applications on Linux / Unix,
Deploying LAMP - Linux, Apache, MySQL, Perl/PHP,
Linux Web Server
Examples from our training material
| joiner.sql | Create two tables, link them with left join |
| loader.sql | Loading data from csv files |
| make_dvd.sql | Create a database and table for a dvd collection |
| pop_dvd.sql | Insert rows into sample dvd table |
| tab1 | First table for advanced join demos |
| tab2 | Second table for advanced join demos |
More web pages on this subject
Regular Expressions in MySQL
Opentalk forum discussions related to this topic
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Background information
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Topics covered in this module
The structure of a database as seen by SQL.
SQL introduction.
Hello SQL World.
Initial administration and error handling.
Field types and modifiers in MySQL.
Floating point (real) numbers.
Whole (Integer) numbers.
Text Strings.
One or more values from a pre-defined list.
Dates and Times.
Blobs.
Other Modifiers.
Example.
Indexes.
Other matters.
A note on reserved words.
Commands to enter new rows of data.
The INSERT command.
The REPLACE command.
The LOAD command.
Enquiry commands.
Conditional Clauses.
Returning table report information.
Commands to modify existing rows of data.
The UPDATE command.
The DELETE command.
Commands to modify the metadata.
The ALTER Command.
The DROP command.
Other commands.
The SHOW command.
On limiting selection.
Joining tables when selecting rows.
Extra use of SELECT.
Other commands.
Some more advanced SQL.
Loading data from file.
More on joining.
A regular "join".
A left join.
Joining across databases?.
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