Beat The Ankle House Arrest

SQLite3 database PostgreSQL DB

Continuing with the analysis of data base management I found this unique handle that in their particular highlights being 100% portable. Since Delphi applications only need a small dll to include the database engine in the application. components to access information from Delphi are the arch-known Zeoslib ( http://sourceforge.net/projects/zeoslib/ free components) that it works with firebird, PostgreSQL, DB2, MySQL can also be used by Sqlite . Among its special features (From Wikipedia ):
"The library implements most SQL-92 standard, including transactions atomic database, database consistency, isolation, and durability (ACID), triggers and most of complex queries.

SQLite ( http://www.sqlite.org/ ) uses an unusual type system. Instead of assigning a type to a column as in most systems SQL databases The rates are assigned to individual values. For example, you can insert a string in an integer column (although SQLite will try in the first instance to convert the string into an integer). Some users regard this as an innovation makes the database much more useful, especially when used from a scripting language for dynamic types. Others see it as a major drawback, since the technique is not portable to other SQL databases. SQLite was not trying to transform the data type of the column until version 3.

Several processes or threads can access the same database without problems. Several read accesses can be served in parallel. A write access can only be served if it is not serving any other access concurrently. Otherwise, the write access fails by returning an error code (or can automatically be retried until the configured timeout expires). This concurrent access situation would change when working with temporary tables. However, it could cause a deadlock due to multithread. [1] This point was addressed in version 3.3.4, developed on February 11, 2006.

There is a separate program named sqlite that can be used to view and manage files SQLite database. It also serves as an example for writing applications using the SQLite library. "
Here I leave a job in itself interesting about this database manager's friend Ignacio Andres Soto Martinez, hope you find it useful.

Eng Greetings Victor J. Acosta L.

SQLite3

Does Ur Cervix Get Soft Before Ur Period

Portable open source world's most advanced

Without doubt one of the management systems database with more development activity in the market is PostgreSQL, which besides being Software Free BSD is licensed permitting their use and handling of your code in non-free.
While their use is not as widespread as the MySql (which is not entirely free) is a more robust and secure than the commercial RDBMS, besides complying fully with the work assigned.

Its main features can quote:

High Concurrecia

Through a system called MVCC (multiversion concurrent access, for its acronym in English) while PostgreSQL allows a process writes to a table, others access to the same table without locks. Each user gets a consistent view of the last thing that made him commit. This strategy is superior to the use of locks per table rows or common in other bases, eliminating the need to use explicit locks.

• Wide variety of native types

PostgreSQL natively provides support for:

* arbitrary precision numbers.
* Text of unlimited length.
* Shapes (with a variety of related functions)
* IP addresses (IPv4 and IPv6.) Blocks
* CIDR-style addresses.
* MAC.
* Arrays.

Additionally users can create their own data types, which can be fully indexable by PostgreSQL GiST infrastructure. Some examples are data types created by the project GIS PostGIS. Other features


* also known as foreign key or foreign keys Foreign Keys (foreign keys).
* triggers (triggers), a trigger defined in a specific action based on something witty in the database. PostgreSQL this means the execution of a stored procedure based on a particular action on a specific table. Now all the triggers are defined by six characteristics:
The name of the trigger or trigger
The moment the shutter should start
The event trigger to be activated on ...
The table where the trigger is activated
execution frequency
function could be called

then combining these six characteristics, PostgreSQL allows you to create a wide functionality through its activation system triggers (triggers).

* Views.
* transactional integrity. * Inheritance
tables.
* Data types and geometric operations. Features



blocks of code that are executed on the server. Can be written in various languages, with the power that gives each of them, from basic programming operations, such as branches and loops, to the complexities of object-oriented programming and functional programming.

triggers (triggers in English) are functions linked to operations on the data.

Some of the languages \u200b\u200bthat can be used are: * A language

own call [PL / PgSQL [1] [2] (similar to PL / SQL for Oracle).
* C.
* C + +.

* Delphi * Java PL / Java web.
* PL / Perl.
* plPHP.
* PL / Python.
* PL / Ruby.
* PL / sh.
* PL / Tcl.
* PL / Scheme. * Language
R statistical applications using PL / R.

supports PostgreSQL functions returning "rows", where the output can be treated as a set of values \u200b\u200bthat can be treated equally to a row returned by a query (query in English).

Functions can be defined to run with user rights or the rights executing a previously defined user. The concept of functions, in other DBMS, are often referred to as "stored procedures" (Stored procedures in English).

We can work with postgresql from Delphi using components or components Zeoslib UniDAC , PostgresDAC these last commercial.

Online support available to this tool is broad. From the website http://www.postgresql.org can download the latest version installed (8.4.1) for different operating systems, Windows, Linux, Mac, Unix etc, plus access to a rich collection of documents and manuals, can solve most problems that often confront. If needed more help on the site are links to mailing lists, books and user groups.

In conclusion PostgreSQL is a serious alternative to the time of having a development involving the use of a database manager to match the major brands. Greetings



Mr. Victor J. L. Acosta

Pixma Mp470 Err0r 5100

Free Text Encrypter

Good afternoon, these days reviewing components Jedi JVCL , suit free component, Encrypt tab I found a component name TjvCipher allowing encrypt and decrypt text depending a key (key ) that I am excited to develop this application (free download can and use at will) that allows encrypt a text which can be sent via email to another person and turn with the same program decrypt the destination for security.


As you can see the first panel allows you to write the text, which is encrypting in the second panel, the buttons indicate if this encrypting or decrypting text included. The master key is 123456 by default but can be changed by any number that PC. wish for more security when sending text, obvious to decrypt must use the same password that have been placed. The buttons let you copy, paste, delete or cut from / to any editor or transfer directly editor to send e-mail .


If they want to put decrypt encrypted text mark the first panel and ready decrypt

The installation program can not download it and paste it directly into the Windows desktop and run it from there. Well I hope will be useful, to the next.

Download: Encritador 1.1