... transactions even when an error occurs java .sql. SQLData: The SQLData interface is used to map the SQL userdefined type to the Java language java .sql. SQLException: The SQLException exception will be thrown ... and its predecessor MM.MySQL, the Java JDBC driver for MySQL Last year, he joined MySQL AB to further develop Java support in MySQL Mark specializes in Java, MySQL, XML, and DHTML solutions and ... 15 18 21 22 24 24 Working with MySQL SQL 25 What Is a Database? Database Models DataTypes Designing a Database Introducing MySQL SQL Overview of MySQL Creating Databases Creating Tables Inserts...
... 64 Installing MySQL, Java, and Connector/ J Figure 4.2 Testing MySQL Installing Java Once the MySQL database server is installed, it’s time to install Java You can find the Java software development ... basics you Introducing MySQL SQL 33 need to build databases and tables, populate the databases with data, and retrieve the data Overview of MySQL MySQL is a DBMS designed as open source software ... the database is created with the following command: mysql> create database accounts; Query OK, row affected (0.00 sec) Introducing MySQL SQL 35 The accounts database is now available on the MySQL...
... ability to go to a specific record and execute a freehand query import import import import import java. awt.*; java. awt.event.*; javax.swing.*; java .sql. *; java. util.*; public class Accounts ... information from a MySQL database package mysql; import java .sql. *; public class Hello { Connection connection; Listing 5.1 Hello World (continues) 67 68 Using J D BC with Java Applications and Applets ... retrieving data from the ResultSet object These methods pull data from a specific row/column cell and attempt to convert the data to a Javadata type as defined by the getter method See Chapter 7, “MySQL...
... using Java servlets and eventually beans, you have an alternative way of obtaining information about the connection to the MySQL database The alternative is to use a DataSource andJava Naming and ... to a java .sql. Time void setTimestamp(int parameterIndex, java .sql. Timestamp aTS)— Sets a parameter to a java .sql. Timestamp void setTimestamp(int parameterIndex, java .sql. Timestamp aTS, java. util.Calendar ... import import import import import java. awt.*; java. awt.event.*; javax.swing.*; java .sql. *; java. util.*; java. awt.geom.AffineTransform; java. awt.image.BufferedImage; java. io.*; public class IDlook...
... binary and character data The BLOB and CLOB are SQL- defined datatypes designed to handle these large datatypes As we discuss in the next chapter, the BLOB type can be used with several MySQL types, ... JAVA TYPE DATE DATE java .sql. Date TIME TIME java .sql. Time DATETIME TIMESTAMP java .sql. Timestamp YEAR DATE java .sql. Date TIMESTAMP TIMESTAMP java .sql. Timestamp DATE The MySQL DATE type represents ... accesses a remote database and displays the thumb_id, the acc_id, and a thumbnail version of the fingerprint image stored in the database ...
... import java. io.*; import java .sql. *; import javax.servlet.*; import javax.servlet.http.*; import javax.naming.*; //import javax.naming.spi.ObjectFactory; import javax .sql. DataSource; public class DatabaseInfo ... import import java. io.*; java .sql. *; javax.servlet.*; javax.servlet.http.*; javax.naming.*; javax .sql. DataSource; public class SeeAccount extends HttpServlet { Listing 9.2 A ResultSet metadata example ... of java .sql. type—such as java .sql. Integer or java .sql. String If you aren’t sure how to pull data from a table column, you can use this method: String dataType = md.getColumnClassName(i); if (dataType.indexOf(“Integer”)...
... you saved your data using the mysqldump command, you can “replay” the SQL commands in the backup files into the current mysql server with the command mysql database < 302 Database Administration ... command mysqlhotcopy The mysqlhotcopy command makes a very quick backup of the specified database using a Perl script, and you must execute it from the same machine as the database ... Use the command mysql> SELECT * INTO OUTFILE “filename” FROM 300 Database Administration Use the command mysql> BACKUP TABLE TO Use the command mysqldump opt ...
... String getSQLTypeName() void readSQL( SQLInput stream, String typeName ) void writeSQL( SQLOutput stream ) 352 The J D BC AP I and Connector/ J SQLException The SQLException class extends java. lang.Exception ... savepoint No SQLData Mapping from SQL UDT to Java class No SQLInput UDT input stream No SQLOutput UDT output stream No Statement Static SQL Statement Yes Struct Representation of a SQL structured ... I and Connector/ J The java .sql Package The java .sql package represents the core of the JDBC API It provides 11 classes and 18 interfaces focused on connecting to and communicating with a data...
... fundamental datatypes supported by JavaScript Date and time values are not one of these fundamental types, but JavaScript does provide a class of object that represents dates and times and can be ... for each of the three key primitive datatypes That is, besides supporting the number, string, and boolean data types, JavaScript also supports Number, String, and Boolean classes These classes ... and (false) (In fact, JavaScript does just this and converts true and false to and when necessary.)[3] [3] C programmers should note that JavaScript has a distinct boolean data type, unlike C,...
... Why DataTypes Are Important The data type of a variable is important because it determines the operations that are allowed and the range of values that can be stored C++ defines several types ... stored C++ defines several types of data, and each type has unique characteristics Because datatypes differ, all variables must be declared prior to their use, and a variable declaration always ... same types of data as does the CPU itself This is one of the ways that C++ enables you to write very efficient, system-level code CRITICAL SKILL 2.1: The C++ DataTypes C++ provides built-in data...
... Create the DataAdapter da = new SqlDataAdapter(selectCommand, ConfigurationSettings.AppSettings[ "Sql_ ConnectString"]); da.UpdateCommand = new SqlCommand(updateCommand, da.SelectCommand.Connection); ... a DataRow and define its schema for the binary types as described previously or retrieve the schema from the data source using the FillSchema( ) method of the DataAdapter Add the row to a DataTable ... SqlConnection( ConfigurationSettings.AppSettings[ "Sql_ ConnectString"]); SqlCommand cmdWrite = new SqlCommand(sqlWrite, conn); // Create parameter for insert command SqlParameter prm; if(image != null) {...
... Why DataTypes Are Important The data type of a variable is important because it determines the operations that are allowed and the range of values that can be stored C++ defines several types ... stored C++ defines several types of data, and each type has unique characteristics Because datatypes differ, all variables must be declared prior to their use, and a variable declaration always ... same types of data as does the CPU itself This is one of the ways that C++ enables you to write very efficient, system-level code CRITICAL SKILL 2.1: The C++ DataTypes C++ provides built-in data...
... allowing descriptive names for the standard datatypes The general form of the typedef statement is typedef type name; where type is any valid data type, and name is the new name for this type ... which correspond to C++’s character and integer types Bitwise operations cannot be used on bool, float, double, long double, void, or other more complex datatypes Bitwise operations are important ... operator is examined in turn 16 C++ A Beginner’s Guide by Herbert Schildt AND, OR, XOR, and NOT The bitwise AND, OR, and one’s complement (NOT) are governed by the same truth table as their logical...
... allowing descriptive names for the standard datatypes The general form of the typedef statement is typedef type name; where type is any valid data type, and name is the new name for this type ... which correspond to C++’s character and integer types Bitwise operations cannot be used on bool, float, double, long double, void, or other more complex datatypes Bitwise operations are important ... operator is examined in turn 16 C++ A Beginner’s Guide by Herbert Schildt AND, OR, XOR, and NOT The bitwise AND, OR, and one’s complement (NOT) are governed by the same truth table as their logical...
... allowing descriptive names for the standard datatypes The general form of the typedef statement is typedef type name; where type is any valid data type, and name is the new name for this type ... which correspond to C++’s character and integer types Bitwise operations cannot be used on bool, float, double, long double, void, or other more complex datatypes Bitwise operations are important ... operator is examined in turn 16 C++ A Beginner’s Guide by Herbert Schildt AND, OR, XOR, and NOT The bitwise AND, OR, and one’s complement (NOT) are governed by the same truth table as their logical...