start.html - HXTT Text (CSV) packages of type 4 JDBC1.2, JDBC2.0 and JDBC3.0 Drivers for raw data, flat text , CSV file, TSV file, fixed-length, and variable-length binary file

Chapter 1. Quick Start

Index:

What Is the HXTT Text (CSV)?
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HXTT Text (CSV) provides a type 4 JDBC driver for raw data, flat text , CSV file, TSV file, fixed-length, and variable-length binary file. It supports JDBC1.2, JDBC2.0, and JDBC3.0. It supports Personal Java, JDK1.0.X, JDK1.1.X, JDK1.2.X, JDK1.3.X, JDK1.4.X and JDK1.5.X. It supports all transactions level of READ UNCOMMITTED, READ COMMITTED, REPEATABLE READ, and SERIALIZABLE. It supports JBuilder's Database Pilot, Oracle's JVM, JDeveloper 10G, Dreamweaver UltraDev, Dreamweaver ColdFusion, ObJectRelationalBridge, DBVisualizer, Sunopsis, MySQL Migration Toolkit, Tomcat, vqServer, Hibernate, SQuirreL SQL Client, and DbEdit Database Utilites for Eclipse Platform. It supports XOPEN SQLState, RMI, Jini, JNDI, and serialization. It supports { UNION | INTERSECT | EXCEPT | MINUS } [ ALL ] query , INNER JOIN, FULL JOIN, LEFT JOIN, RIGHT JOIN, NATURAL JOIN, CROSS JOIN, self join, and subquery which includes single-row subquery, multirow subquery, multiple-column subquery, inline views, and correlated subquery. The current version of the HXTT Text (CSV) packages are available here:

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First, you need to download JDK 1.3.X, 1.4.X, or 1.5.X from www.javasoft.com if you use Text JDBC 3.0 package(Text_JDBC30.jar). You can download JDK1.2.X too if you use Text JDBC 2.0 package(Text_JDBC20.jar). You can download JDK1.1.X too if you use Text JDBC 1.2 package(Text_JDBC12.jar).

Secondly, please add Text_JDBC30.jar, Text_JDBC20.jar or Text_JDBC12.jar to your Java class path, for instance, "SET CLASSPATH=c:\javalib\Text_JDBC20.jar;%classpath%". You can also use "java -classpath c:\javalib\Text_JDBC20.jar yourTextclass" to run your class. More information about classpath, please read the "Setting the Classpath" topic in file:///yourdriver|/jdk1.2/docs/tooldocs/tools.html . You can use "java -classpath c:\javalib\Text_JDBC20.jar yourTextclass" too.

Thirdly, you can use 'Class.forName("com.hxtt.sql.text.TextDriver").newInstance();' or Class.forName("com.hxtt.sql.text.TextDriver");' to load this driver.

Fourth, if you have used other JDBC driver, you only need to know the correct URL format for DriverManager.getConnection(url,"",""); You can find the Text URL format below. If you were a Java novice, please read also other Java examples code in Text_JDBC30demo.zip, Text_JDBC20demo.zip or Text_JDBC12demo.zip.
Text URL format:


        Embedded:
                jdbc:Text:[//]/[DatabasePath][?prop1=value1[&prop2=value2]] (You can omit that "//" characters sometimes)
                        For example:
                                "jdbc:Text:/."
                                "jdbc:Text:/c:/data"
                                "jdbc:Text:////usr/data" 
                           for unix or linux:
                                "jdbc:Text:/./data"
        Remote Access:
                jdbc:Text://host:port/[DatabasePath]
                        For example: "jdbc:Text://domain.com:3099/c:/data" if one TextServer is run on the 3099 port of domain.com

Last, Text driver is a standard JDBC driver so that you will find most of valuable information at file:///yourdrive|/jdk1.2/docs/api/java/sql/package-frame.html .

Text supports SQL Minimum Grammar, which is a subset of the Entry level syntax of SQL-92. It supports { UNION | INTERSECT | EXCEPT | MINUS } [ ALL ] query , INNER JOIN, FULL JOIN, LEFT JOIN, RIGHT JOIN, NATURAL JOIN, CROSS JOIN, self join, and subquery which includes single-row subquery, multirow subquery, multiple-column subquery, inline views, and correlated subquery. The major syntax is listed at here.

Text driver will use index to speed up the query which contains some indexed expressions. Text driver doesn't index all deleted records, and supports utilizing index file for LIKE, BETWEEN, IN, and some OR operations.