1. One of the most fundamental things that you will do with the Microsoft JDBC Driver for SQL Server is to make a connection to a SQL Server database. All interaction.
2. This JDBC Java tutorial describes how to use JDBC API to create, insert into, update, and query tables. You will also learn how to use simple and prepared statements.
3. All cheat sheets, round-ups, quick reference cards, quick reference guides and quick reference sheets in one page.
4. JDBC Environment Setup - Learning JDBC in simple and easy steps using this beginner's tutorial containing basic to advanced knowledge of JDBC including Drivers.
5. Ojdbc6.jar (1,988,051 bytes) - Classes for use with JDK 1.6. It contains the JDBC driver classes except classes for NLS support in Oracle Object and Collection types.

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Back to top MySQL JDBC connection string (JDBC URL) Here's a sample MySQL JDBC connection string and JDBC driver string, taken from a Java properties file.

The set of properties supported by j. TDS is: app. Name (default - . No practical use, it's displayed by Enterprise Manager. Profiler associated with the connection. Commit (default - .

The j. TDS driver enables auto commit by default. Use this option to.

Size (default - 0 for SQL Server. Sybase)Controls how many statements are sent to the server in a batch.

The reason for this is to avoid Sybase . The problem doesn't. SQL Server, hence the default limit of 0. Address (default - determined by the Java.

Java 1. 4 or later)Specifies the local IP address to bind to for outgoing TCP/IP. When the amount of buffered server response packets.

Statement gets to buffer at. Min. Packets> to memory before this. This means that this limit can and will usually be. Server responses are buffered to disk only when a request is made on. Statement while another Statement. Connection still hasn't processed all its. These situations can be avoided in most cases by setting the.

Cursors property, but this will also affect. See also buffer. Min. Packets. buffer. Min. Packets (default - 8)Controls the minimum number of packets per statement to buffer to. Each Statement will buffer at least this many. Max. Memory> is reached, to ensure good.

Statement caches a very large. Server responses are buffered to disk only when a request is made on. Statement while another Statement. Connection still hasn't processed all its. These situations can be avoided in most cases by setting the. Cursors property, but this will also affect.

See also buffer. Max. Memory. cache. Meta. Data (default - false)When used with prepare. SQL=3, setting this property to. SELECT statements.

Caching the meta data will reduce the processing. Use with care. For.

NCHAR/NVARCHAR/NTEXT values. Unicode. domain. Specifies the Windows domain to authenticate in. If present and the. TDS uses Windows (NTLM).

SQL Server authentication (i. SQL Server can run multiple so- called. When using Microsoft tools, selecting. With j. TDS you will have to. Update. Count (default - true)If true only the last update count will be returned by. Update(). This is useful in case you are updating. If false. all update counts are returned; use get.

More. Results() to. Buffer (default - 3. The amount of LOB data to buffer in memory before caching to disk.

The. value is in bytes for Blob data and chars for Clob. Timeout (default - 0 for TCP/IP connections. The amount of time to wait (in seconds) for a successful connection. If a TCP/IP connection is used to connect to the database and Java 1. Timeout parameter is used to set.

It's displayed by Enterprise. Manager or Profiler associated with the connection and is needed to. SQL Server license. The MAC address cannot be determined automatically. Java (i. e. When the. When the SQL Server and the client are on the same machine.

TCP/IP sockets. since the network layer is eliminated. Otherwise the. JCIFS library is used. JCIFS. provides a pure Java named pipe implementation and uses NTLM. This feature supports the instance parameter (which changes. URL), but it does not currently support the named pipe at.

The. port parameter is ignored if set. Size (default - 4. TDS 7. 0/8. 0. 5. TDS 4. 2/5. 0)The network packet size (a multiple of 5. Password to use for login.

When using get. Connection(String url. String user, String password) it's not required to set this property. Connection(String url, Properties info) or Jtds. Data. Source. prepare. SQL (default - 3 for SQL Server. Sybase)This parameter specifies the mechanism used for Prepared Statements.

No practical use, it's displayed by Enterprise. Manager or Profiler associated with the connection. Id (default - 1. 23)The client process ID associated with the connection.

Must be an integer. This. seriously affects SQL Server 2. Unicode. and the string is submitted using the default character encoding (or. SQLServer will perform an index scan instead of. For Sybase, determines if strings that cannot be encoded in. There is a performance.

Timeout (default - 0)The amount of time to wait (in seconds) for a server response before timing out. Use with care! If a non zero value is supplied this must be greater than the maximum. Once the timeout value is exceeded. This parameter may be useful for. If using named pipes via JCIFS the timeout cannot be. A timeout of about 2. Keep. Alive (default - false)true to enable TCP/IP keep- alive messagesssl (default - off)Specifies if and how to use SSL for secure communication.

TDS (Tabular Data Stream) is the protocol. Microsoft SQL Server and Sybase to communicate with database. Version 4. 2 is used by.

SQL Server 6. 5 and Sybase 1. Version 8. 0 is used by SQL Server 2. SQL Server 2. 00. Newer database server versions usually understand older protocol versions. As a conclusion. you must set this property to . This is the fastest approach.

So when. using multiple Statements per Connection it. Size property of a. Statement). This means extra request- response cycles. With SQL Server a so called. With Sybase a usual forward- only read- only cursor. JCIFS (default - false)Controls whether the j.

CIFS. library will be used instead of the local file system with named pipe. Windows operating system. The default. JDBC type constant returned is also controlled by this property.

Types. BLOB for IMAGE and Types. CLOB for. TEXT/NTEXT when true, Types. LONGVARBINARY. for IMAGE and Types. LONGVARCHAR for TEXT/NTEXT when. This is useful when printing out directly the values returned by. Object() (e. g. The default setting of.

Buffer property; a setting of false will. Blob and Clob implementations.

Object() is called, possibly leading to memory. NTLMv. 2 (default - false)Set to true to send LMv. NTLMv. 2 responses when using. Windows authenticationuser (required)User name to use for login.

When using get. Connection(String. String user, String password) it's not required to set this.

Connection(String url, Properties info) or. Jtds. Data. Source. Workstation ID. No practical use, it's displayed by Enterprise. Manager or Profiler associated with the connection. Emulation (default - true)When set to true, emulate XA distributed transaction. True distributed transaction support. SQL Server 2. 00.

README. XA file in the distribution for details). Properties can be passed to j. TDS in one of three ways: in the URL, in. Properties object passed to get. Connection(). or by using the Jtds.

Data. Source's setters (if connections are. Data. Source rather than using the. Driver. Manager).

Because there is no URL when using the. Jtds. Data. Source there are three other properties (with. URL's syntax: server. Name, port. Number and.

Name (their meaning should be quite clear).^ top ^j. TDS is supposed to be the. JDBC driver around. Have you got any figures to prove that? Or. even better, a benchmark I can run myself? Actually we do have benchmark results from two different benchmarks.

SQL Server JDBC driver vendors to. In our oppinion this. TDS the edge. These benchmarks are free to. We have benchmarked j.

TDS against the two most used commercial drivers. Microsoft driver and the JDBC- ODBC bridge, using these. Bench. Test 2. 1 for MS SQL Server and.

JNet. Direct's. JDBC Performance Benchmark. Here are the results of the i- net test. Bench. Test 2. 1 for MS SQL Server.

The JNet. Direct. However, you. can run any of the benchmarks yourself, the effort is minimal.^ top ^Which JDBC features are and. TDS? j. TDS offers full support for all JDBC 3. Data. Source. implementation (which also implements Connection. Pool. Data. Source.

XAData. Source). Features such as generated keys. The only major features missing from j. TDS are connection pooling and. Check out the j. TDS feature. Half Life 2 Episode One Patch Fr Sims there. Can j. TDS be used in a.

As a general principle we try and keep synchronization to a minimum. The only part of j. TDS we. guarantee is thread safe is the Connection object, and. Statements is discouraged (except. As a conclusion the only safe multithreading scenarios are these: (i).

Connection with multiple Statements, each. Statement used by a single thread and (ii) a. Statement used by one thread and cancelled by some other.

Connecting with Data. Source Objects (The Java. In addition to their other advantages, which will be explained later, Data. Source objects can provide connection pooling and distributed transactions. This functionality is essential for enterprise database computing. In particular, it is integral to Enterprise Java.

Beans (EJB) technology. This section shows you how to get a connection using the Data. Source interface and how to use distributed transactions and connection pooling. Both of these involve very few code changes in your JDBC application. The work performed to deploy the classes that make these operations possible, which a system administrator usually does with a tool (such as Apache Tomcat or Oracle Web.

Logic Server), varies with the type of Data. Source object that is being deployed. As a result, most of this section is devoted to showing how a system administrator sets up the environment so that programmers can use a Data. Source object to get connections. The following topics are covered: In Establishing a Connection, you learned how to get a connection using the Driver. Manager class. This section shows you how to use a Data.

Source object to get a connection to your data source, which is the preferred way. Objects instantiated by classes that implement the Data. Source represent a particular DBMS or some other data source, such as a file. A Data. Source object represents a particular DBMS or some other data source, such as a file.

If a company uses more than one data source, it will deploy a separate Data. Source object for each of them.

The Data. Source interface is implemented by a driver vendor. It can be implemented in three different ways: A basic Data.

Source implementation produces standard Connection objects that are not pooled or used in a distributed transaction. A Data. Source implementation that supports connection pooling produces Connection objects that participate in connection pooling, that is, connections that can be recycled. A Data. Source implementation that supports distributed transactions produces Connection objects that can be used in a distributed transaction, that is, a transaction that accesses two or more DBMS servers. A JDBC driver should include at least a basic Data.

Source implementation. For example, the Java DB JDBC driver includes the implementation org. Client. Data. Source and for My. SQL, com. mysql. jdbc. Mysql. Data. Source. If your client runs on Java 8 compact profile 2, then the Java DB JDBC driver is org.

Basic. Client. Data. Source. 40. The sample for this tutorial requires compact profile 3 or greater. A Data. Source class that supports distributed transactions typically also implements support for connection pooling.

For example, a Data. Source class provided by an EJB vendor almost always supports both connection pooling and distributed transactions. Suppose that the owner of the thriving chain of The Coffee Break shops, from the previous examples, has decided to expand further by selling coffee over the Internet.

With the large amount of online business expected, the owner will definitely need connection pooling. Opening and closing connections involves a great deal of overhead, and the owner anticipates that this online ordering system will necessitate a sizable number of queries and updates. With connection pooling, a pool of connections can be used over and over again, avoiding the expense of creating a new connection for every database access.

In addition, the owner now has a second DBMS that contains data for the recently acquired coffee roasting company. This means that the owner will want to be able to write distributed transactions that use both the old DBMS server and the new one. The chain owner has reconfigured the computer system to serve the new, larger customer base. The owner has purchased the most recent JDBC driver and an EJB application server that works with it to be able to use distributed transactions and get the increased performance that comes with connection pooling.

Many JDBC drivers are available that are compatible with the recently purchased EJB server. The owner now has a three- tier architecture, with a new EJB application server and JDBC driver in the middle tier and the two DBMS servers as the third tier.

Client computers making requests are the first tier. The system administrator needs to deploy Data. Source objects so that The Coffee Break's programming team can start using them. Deploying a Data. Source object consists of three tasks: Creating an instance of the Data. Source class. Setting its properties.

Registering it with a naming service that uses the Java Naming and Directory Interface (JNDI) APIFirst, consider the most basic case, which is to use a basic implementation of the Data. Source interface, that is, one that does not support connection pooling or distributed transactions. In this case there is only one Data.

Source object that needs to be deployed. A basic implementation of Data. Source produces the same kind of connections that the Driver.

Manager class produces. Creating Instance of Data. Source Class and Setting its Properties. Suppose a company that wants only a basic implementation of Data.

Source has bought a driver from the JDBC vendor DB Access, Inc. This driver includes the class com.

Basic. Data. Source that implements the Data. Source interface. The following code excerpt creates an instance of the class Basic. Data. Source and sets its properties.

After the instance of Basic. Data. Source is deployed, a programmer can call the method Data. Source. get. Connection to get a connection to the company's database, CUSTOMER. First, the system administrator creates the Basic. Data. Source object ds using the default constructor. The system administrator then sets three properties.

Note that the following code is typically be executed by a deployment tool. Basic. Data. Source ds = new com. Basic. Data. Source(). Server. Name(. Any connection produced by the Basic.

Data. Source object ds will be a connection to the database CUSTOMER. The particular naming service that is used is usually determined by a system property, which is not shown here. The following code excerpt registers the Basic. Data. Source object and binds it with the logical name jdbc/billing. DB. Context ctx = new Initial. Context(). ctx. bind(.

The first line creates an Initial. Context object, which serves as the starting point for a name, similar to root directory in a file system. The second line associates, or binds, the Basic. Data. Source object ds to the logical name jdbc/billing. DB. In the next code excerpt, you give the naming service this logical name, and it returns the Basic.

Data. Source object. The logical name can be any string. In this case, the company decided to use the name billing. DB as the logical name for the CUSTOMER.

The name jdbc/billing. DB is like a path name, where the last item in the path is analogous to a file name. In this case, billing.

DB is the logical name that is given to the Basic. Data. Source object ds. The subcontext jdbc is reserved for logical names to be bound to Data. Source objects, so jdbc will always be the first part of a logical name for a data source. Using Deployed Data.

Source Object. After a basic Data. Source implementation is deployed by a system administrator, it is ready for a programmer to use. This means that a programmer can give the logical data source name that was bound to an instance of a Data. Source class, and the JNDI naming service will return an instance of that Data. Source class. The method get.

Connection can then be called on that Data. Source object to get a connection to the data source it represents.

For example, a programmer might write the following two lines of code to get a Data. Source object that produces a connection to the database CUSTOMER. When you supply the logical name jdbc/billing. DB to the method lookup, the method returns the Data. Source object that the system administrator bound to jdbc/billing.

DB at deployment time.