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.

Microsoft Enterprise Library Database Connection Pooling Java

Always close connections as soon as you are done with them, so they underlying database connection can go back into the pool and be available for other callers. Duet Enterprise for Microsoft SharePoint. Licenses that are granted or acquired in connection with Software.

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.

ProgName (default - "jTDS") Client library name. No practical use, it's displayed by Enterprise Manager or Profiler associated with the connection. Explains how to perform day-to-day database performance tuning tasks using features provided by Oracle Diagnostics Pack, Oracle Tuning Pack, and Oracle Enterprise. Microsoft Data Access Components (MDAC; also known as Windows DAC) is a framework of interrelated Microsoft technologies that allows programmers a uniform and.

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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. Annual Editions Early Childhood Education 09 10. 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. 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.