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The Servlet 2.3 API consists of two packages: javax.servlet and javax.servlet.http. The base functionality is defined in the javax.servlet package whose classes and interfaces outline a generic, protocol-independent implementation. This means you can use it for non-Web applications, too. The javax.servlet.http interface defines classes and interfaces that are specific to the Hypertext Transfer Protocol (HTTP).
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∙ 13y ago
The Servlet API is not specifically used for connecting to databases. Instead, servlets typically interact with databases through JDBC (Java Database Connectivity), which is a standard Java API for database access. Servlets can use JDBC to establish connections, execute SQL queries, and retrieve results from a database.
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Is there a way of having online survey results automatically fed into a database on submission?
Yes, you can set up a process that integrates your online survey tool with a database system. Many survey tools offer this feature through third-party integrations or API connections that can automatically populate the database with survey responses upon submission. This helps streamline the data collection process and keeps your database up-to-date in real-time.
What is the components of DBMS and how they relate to each other?
DBMS architecturespecifies its components (including descriptions of their functions) and their interfaces. DBMS architecture is distinct from database architecture. The following are major DBMS components:DBMS external interfaces- They are the means to communicate with the DBMS (both ways, to and from the DBMS) to perform all the operations needed for the DBMS. These can be operations on a database, or operations to operate and manage the DBMS. For example:- Direct database operations: defining data types, assigning security levels, updating data, querying the database, etc. - Operations related to DBMS operation and management: backup and restore, database recovery, security monitoring, database storage allocation and database layout configuration monitoring, performance monitoring and tuning, etc. An external interface can be either a user interface (e.g., typically for a database administrator), or an application programming interface (API) used for communication between an application program and the DBMS. Database language engines(or processors) - Most operations upon databases are performed through expression in Database languages (see above). Languages exist for data definition, data manipulation and queries (e.g., SQL), as well as for specifying various aspects of security, and more. Language expressions are fed into a DBMS through proper interfaces. A language engine processes the language expressions (by a compiler or language interpreter) to extract the intended database operations from the expression in a way that they can be executed by the DBMS.Query optimizer - Performs query optimization on every query to choose for it the most efficient query plan (a partial order (tree) of operations) to be executed to compute the query result.Database engine - Performs the received database operations on the database objects, typically at their higher-level representation.Storage engine - translates the operations to low-level operations on the storage bits. In some references the Storage engine is viewed as part of the database engine.Transactionengine - for correctness and reliability purposes most DBMS internal operations are performed encapsulated in transactions (see below). Transactions can also be specified externally to the DBMS to encapsulate a group of operations. The transaction engine tracks all the transactions and manages their execution according to the transaction rules (e.g., proper concurrency control, and proper commit or abort for each).DBMS management and operation component - Comprises many components that deal with all the DBMS management and operational aspects like performance monitoring and tuning, backup and restore, recovery from failure, security management and monitoring, database storage allocation and database storage layout monitoring, etc.Data definition subsystemhelps the user create and maintain the data dictionary and define the structure of the file in a database.Data manipulation subsystem helps the user to add, change, and delete information in a database and query it for valuable information. Software tools within the data manipulation subsystem are most often the primary interface between user and the information contained in a database. It allows the user to specify its logical information requirements.Application generation subsystem contains facilities to help users develop transaction-intensive applications. It usually requires that the user perform a detailed series of tasks to process a transaction. It facilitates easy-to-use data entry screens, programming languages, and interfaces.Data administration subsystem helps users manage the overall database environment by providing facilities for backup and recovery, security management, query optimization, concurrency control, and change management.
What is Query explorer?
Query explorer is a tool provided by Google for interacting with their APIs through custom queries. Users can input specific parameters and execute queries to test and explore the capabilities of the API. It helps developers understand how to structure API calls and retrieve the intended data.
How can you use RMIS?
RMI (Remote Method Invocation) is a Java API that enables communication between distributed systems by allowing objects to invoke methods on remotely located objects. To use RMI, you need to define Remote interfaces, implement these interfaces in server-side classes, create a server that hosts these objects, and then create clients that interact with these remote objects by invoking their methods. Additionally, you need to ensure proper configuration of security, port, and registry settings to establish communication between the server and clients.
What servlet API used for database connection?
The Servlet 2.3 API consists of two packages: javax.servlet and javax.servlet.http. The base functionality is defined in the javax.servlet package whose classes and interfaces outline a generic, protocol-independent implementation. This means you can use it for non-Web applications, too. The javax.servlet.http interface defines classes and interfaces that are specific to the Hypertext Transfer Protocol (HTTP).
What is an API Is MySQL an API?
MySQL is not an API MySQL is a database where you store data. An API is how you request information from another website.
What does API key mean?
An API Key is an application programming interface. Inn smaller words it is how you can grab data from one website or database and use it on your website or database.
What is the use of JDBC?
JDBC stands for Java Database connectivity which is a standard java API for database. It is for database connectivity with project.
What is jdbc-odbc bridge?
jdbc-odbc bridge is a jdbc driver required to connect java application to the specified database. Using this driver the java calls are converted to the odbc calls and then are referred to the database. Since odbc driver are the implemetation of the API written in C language. As in the case of this driver the API is provided by Sun MicroSystem itself and the implementation of these API is done by the Database Vendors.
Which api used in java?
The Java API is the API for the main Java Library.
What are the uses of java database connectivity?
Java Database Connectivity, a Java API that enables Java programs to execute SQL statements. This allows Java programs to interact with any SQL-compliant database.
What is jdbc?
JDBC stands for Java Database Connectivity . It was developed by Java soft and is a part of Java Enterprise API. JDBC is the first standardized API that allows the users to develop database front ends without continously rewriting their code. JDBC provides the ability to create robust, platform-independent application and wev-based applets, wihich can acces any database through a DBS-independent mechanism. The interaction between these application and applets with SQL data sources is done through a set of relational database objects and methods defined is the JDBC API.
What is JDBC package in java?
JDBC stands for Java Data Base Connectivity. As the name suggests the package is reposnisble for database connectivity. It is a standard API defined for database access.
What is connecitviy in dbms?
Connectivity in database management system is done using is done by making a connection object and using JDBC driver API. For database connectivity ognl.jar should be included in the project.
What is an API unit?
An API unit is a unit of radioactivity used for measuring natural gamma rays in the ground.
What is an API and what does it have to do with Facebook?
API IS a Application Code used by Facebook to classify diffrent apps made by people
