Jdbc Ppt
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This document summarizes the history and concepts of database connectivity prior to and with the introduction of JDBC and ODBC. It discusses how database connectivity was previously vendor-specific and difficult, and how JDBC and ODBC standardized connectivity through open APIs. It then covers the key aspects of JDBC including its definition, tasks, support for different architectures, and types of JDBC drivers.
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JDBC (Java Database Connectivity) is a standard Java API for connecting to databases. It provides interfaces for tasks like making database connections, executing SQL statements, and retrieving result sets. There are 4 types of JDBC drivers that implement the JDBC interfaces in different ways. A common JDBC application involves importing packages, registering the driver, getting a database connection, executing statements using that connection, and closing resources. Statements, PreparedStatements, and CallableStatements are used to send SQL/PLSQL commands and retrieve results.Java Database Connectivity (JDBC)
Java Database Connectivity (JDBC)Pooja Talreja
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JDBC (Java Database Connectivity) is an API that allows Java applications to interact with various database management systems by executing SQL statements. It consists of several components including the JDBC API, JDBC Driver Manager, and JDBC-ODBC Bridge, enabling cross-platform database communication. The architecture includes different types of JDBC drivers (Type 1 to Type 4) that translate JDBC calls into database-specific protocols, enhancing application versatility and performance.jdbc document
jdbc documentYamuna Devi
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The document discusses Java Database Connectivity (JDBC). It describes JDBC as a Java API that allows Java programs to execute SQL statements. It provides methods for querying and updating data within a database. The document outlines the different components and specifications of JDBC, including the JDBC driver manager, JDBC drivers, and JDBC APIs. It also discusses the different types of JDBC drivers and their architectures.Jdbc driver types
Jdbc driver typesSoham Kansodaria
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The document discusses the four types of JDBC drivers:
- Type 1 drivers use JDBC-ODBC bridge, which converts JDBC to ODBC. They are platform dependent.
- Type 2 drivers use native database APIs and are partly Java. The database client is needed.
- Type 3 drivers use a middleware layer that converts JDBC to the database protocol. They support multiple databases.
- Type 4 drivers directly convert JDBC to the database protocol. They are 100% Java but database dependent.JDBC.ppt
JDBC.pptChagantiSahith
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JDBC (Java Database Connectivity) provides APIs for Java programs to connect to databases. There are four types of JDBC drivers: Type 1 uses JDBC-ODBC bridge, Type 2 uses a native API, Type 3 is pure Java using a network protocol, and Type 4 is also pure Java using a native database protocol.
To connect to a database using JDBC, a program loads the appropriate JDBC driver, gets a connection, creates statements to execute SQL queries and updates, processes the result set, and closes resources. Prepared statements can be used for repetitive queries to improve performance over regular statements. Overall, JDBC allows Java applications to connect to databases in a standardized wayAd
Jdbc Ppt
- 1. By: Gaurav Godhwani, Sushil Sinhal CSE Department , IES IPS Academy
- 2. Before APIs like JDBC and ODBC, database connectivity was tedious: > Database vendor provided function libraries for database access. > Connectivity library was proprietary. > Data access portions had to be rewritten with changes in the application. > Application developers were stuck with a particular database product for a given application
- 3. > Write once, run anywhere > Multiple client and server platforms > Object-relational mapping > databases optimized for searching/indexing > objects optimized for engineering/flexibility > Network independence > Works across Internet Protocol > Database independence > Java can access any database vendor > Ease of administration
- 4. > A standard or open application programming interface (API) for accessing a database > Developed by SQL Access Group, chiefly Microsoft, in 1992 > Access to various kinds of Databases > Allows programs to use SQL requests that will access databases without knowledge of the proprietary interfaces to the databases > Handles these requests and converts it into a request understandable by an individual database system.
- 5. > An ODBC software for a particular OS. > A separate module or driver for each database to be accessed > Driver masks the heterogeneity of DBMS, operating system and network protocol. > Ex: Sybase Driver, Windows Driver, etc.
- 7. > Java API for connecting programs written in Java to the data in relational databases > The standard defined by Sun Microsystems, allowing individual providers to implement and extend the standard with their own JDBC drivers. > Tasks of JDBC: 1) establishes a connection with a database 2) sends SQL statements 3) processes the results
- 8. > The JDBC API supports both two-tier and three-tier models for database access. > Two-tier model -- a Java applet or application interacts directly with the database. > Three-tier model -- introduces a middle-level server for execution of business logic: > the middle tier to maintain control over data access. > the user can employ an easy-to-use higher-level API which is translated by the middle tier into the appropriate low-level calls.
- 9. Java Application JDBC driver manager JDBC/native bridge DBMS Native driver (DBMS specific) JDBC/ODBC bridge ODBC Driver JDBC middleware (various DBMS) JDBC Driver (DBMS Specific)
- 10. > Class-I: JDBC:ODBC ( mainly for Desktop Applications) > Use bridging technology > Requires installation/configuration on client machines > Not good for Web > Class-II: Native API Drivers (Vendor Specific drivers) > Requires installation/configuration on client machines > Used to leverage existing CLI libraries > Usually not thread-safe > Mostly obsolete now > e.g. Intersolv Oracle Driver, WebLogic drivers
- 11. > Class-III: Network API > Calls middleware server, usually on database host > Very flexible & allows access to multiple databases using one driver > Only need to download one driver > But its another server application to install and maintain > e.g. Symantec DBAnywhere > Class-IV: Network Protocol Driver (used for Network based Applications) > Pure Java Drivers > Use Java networking libraries to talk directly to database engines > need to download a new driver for each database engine > e.g. Oracle, MySQL
- 13. Query Close Connect Process results Register the driver Connect to the database
- 14. Close Connect Query Create a statement Process results Query the database
- 15. Close Query Step through the results Process results Assign results to Java variables Connect
- 16. Connect Query Process results Close Close the result set Close the statement Close the connection
- 24. Thank You !!!