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SAP SQL Anywhere
SAP SQL Anywhere is a proprietary relational database management system (RDBMS) product from SAP. SQL Anywhere was known as Sybase SQL Anywhere prior to the acquisition of Sybase by SAP. History The database company Sybase obtained the SQL Anywhere technology as part of its acquisition of PowerBuilder vendor PowerSoft. Features SQL Anywhere can be run on Windows, Windows CE, Mac OS X, and various UNIX platforms, including Linux, AIX, HP-UX and Solaris. Database files are independent of the operating system, allowing them to be copied between supported platforms. The product provides several standard interfaces (ODBC, JDBC, and ADO.NET) and a number of special interfaces such as PHP and Perl. The engine supports stored procedures, user functions (using Watcom SQL, T-SQL, Java, or C/ C++), triggers, referential integrity, row-level locking, replication, high availability, proxy tables, and events (scheduled and system events). Strong encryption is supported for both databas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SAP AG
Sap is a fluid transported in the xylem cells (vessel elements or tracheids) or phloem sieve tube elements of a plant. These cells transport water and nutrients throughout the plant. Sap is distinct from latex, resin, or cell sap; it is a separate substance, separately produced, and with different components and functions. Honeydew (secretion), Insect honeydew is called sap, particularly when it falls from trees, but is only the remains of eaten sap and other plant parts. Types of sap Saps may be broadly divided into two types: xylem sap and phloem sap. Xylem sap Xylem sap (pronounced ) consists primarily of a watery solution of plant hormone, hormones, dietary mineral, mineral elements and other nutrients. Transport of sap in xylem is characterized by movement from the roots toward the leaf, leaves. Over the past century, there has been some controversy regarding the mechanism of xylem sap transport; today, most plant scientists agree that the cohesion-tension theory be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
T-SQL
Transact-SQL (T-SQL) is Microsoft's and Sybase's proprietary extension to the SQL (Structured Query Language) used to interact with relational databases. T-SQL expands on the SQL standard to include procedural programming, local variables, various support functions for string processing, date processing, mathematics, etc. and changes to the DELETE and UPDATE statements. Transact-SQL is central to using Microsoft SQL Server. All applications that communicate with an instance of SQL Server do so by sending Transact-SQL statements to the server, regardless of the user interface of the application. Stored procedures in SQL Server are executable server-side routines. The advantage of stored procedures is the ability to pass parameters. Variables Transact-SQL provides the following statements to declare and set local variables: DECLARE, SET and SELECT. DECLARE @var1 NVARCHAR(30); SET @var1 = 'Some Name'; SELECT @var1 = Name FROM Sales.Store WHERE CustomerID = 100; Flow contro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobile Database
Mobile computing devices (e.g., smartphones and Personal digital assistant, PDAs) store and share data over a mobile network, or access a database which is actually stored by the mobile device. This could be a list of contacts, price information, distance travelled, or any other information. Many applications require the ability to download information from an information repository and operate on this information even when out of range or disconnected. An example of this is accessing your contacts and calendar on a mobile phone. In this scenario, a user would require access to update information from files in the home directory, home directories on a server or customer records from a database. This type of access and work load generated by such users is different from the traditional workloads seen in Client–server model, client–server systems of today. Mobile databases are not used solely for the revision of company contacts and calendars, but are also utilized in a number of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Database Server
A database server is a server which uses a database application that provides database services to other computer programs or to computers, as defined by the client–server model. Database management systems (DBMSs) frequently provide database-server functionality, and some database management systems (such as MySQL) rely exclusively on the client–server model for database access (while others, like SQLite, are meant for use as an embedded database). Users access a database server either through a " front end" running on the user's computerwhich displays requested dataor through the " back end", which runs on the server and handles tasks such as data analysis and storage. In a master–slave model, database master servers are central and primary locations of data while database slave servers are synchronized backups of the master acting as proxies. Most database applications respond to a query language. Each database understands its query language and converts each submi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
QuickBooks
QuickBooks is an accounting software package developed and marketed by Intuit. First introduced in 1992, QuickBooks products are geared mainly toward small and medium-sized businesses and offer on-premises accounting applications as well as cloud-based versions that accept business payments, manage and pay bills, and payroll functions. History Intuit was founded in 1983 by Scott Cook and Tom Proulx in Mountain View, California, USA. After the success of its Quicken product for individual financial management, the company developed similar services for small business owners. Initial release The initial Quicken software did not function as a "double-entry" accounting package. The initial release of QuickBooks was the DOS version that was based on the Quicken codebase. The Windows and Mac versions shared a different codebase that was based on In-House Accountant, which Intuit had acquired. The software was popular among small business owners who had no formal accounting t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intuit
Intuit Inc. is an American multinational business software company that specializes in financial software. The company is headquartered in Mountain View, California, and the CEO is Sasan Goodarzi. Intuit's products include the tax preparation application TurboTax, the small business accounting program QuickBooks, the credit monitoring and personal accounting service Credit Karma, and email marketing platform Mailchimp. more than 95% of its revenues and earnings come from its activities within the United States. Listed on Nasdaq, the company is a component of the Nasdaq-100, S&P 100, and S&P 500 stock market indices. Intuit offered a free online service called TurboTax Free File as well as a similarly named service called TurboTax Free Edition which is not free for most users. In 2019, investigations by ProPublica found that Intuit deliberately steered taxpayers from the free TurboTax Free File to the paid TurboTax Free Edition using tactics including search engine deli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Embedded Database
An embedded database system is a database management system (DBMS) which is tightly integrated with an application software; it is embedded in the application (instead of coming as a standalone application). It is a broad technology category that includes: * database systems with differing application programming interfaces (SQL as well as proprietary, native APIs) * database architectures ( client-server and in-process) * storage modes (on-disk, in-memory, and combined) * database models ( relational, object-oriented, entity–attribute–value model, network/CODASYL) * target markets Note: The term “embedded” can sometimes be used to refer to the use on embedded devices (as opposed to the definition given above). However, only a tiny subset of embedded database products are used in real-time embedded systems such as telecommunications switches and consumer electronics. (See mobile database for small-footprint databases that could be used on embedded devices.) Implemen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strong Encryption
Strong cryptography or cryptographically strong are general terms used to designate the cryptographic algorithms that, when used correctly, provide a very high (usually insurmountable) level of protection against any eavesdropper, including the government agencies. There is no precise definition of the boundary line between the strong cryptography and ( breakable) weak cryptography, as this border constantly shifts due to improvements in hardware and cryptanalysis techniques. These improvements eventually place the capabilities once available only to the NSA within the reach of a skilled individual, so in practice there are only two levels of cryptographic security, "cryptography that will stop your kid sister from reading your files, and cryptography that will stop major governments from reading your files" (Bruce Schneier). The strong cryptography algorithms have high security strength, for practical purposes usually defined as a number of bits in the key. For example, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Default Gateway
A default gateway is the node in a computer network using the Internet protocol suite that serves as the forwarding host ( router) to other networks when no other route specification matches the destination IP address of a packet. Role A gateway is a network node that serves as an access point to another network, often involving not only a change of addressing, but also a different networking technology. More narrowly defined, a router merely forwards packets between networks with different network prefixes. The networking software stack of each computer contains a routing table that specifies which interface is used for transmission and which router on the network is responsible for forwarding to a specific set of addresses. If none of these forwarding rules is appropriate for a given destination address, the default gateway is chosen as the router of last resort. The default gateway can be specified by the route command to configure the node's routing table and default rou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cluster (computing)
A computer cluster is a set of computers that work together so that they can be viewed as a single system. Unlike Grid computing, grid computers, computer clusters have each Node (networking), node set to perform the same task, controlled and scheduled by software. The newest manifestation of cluster computing is cloud computing. The components of a cluster are usually connected to each other through fast local area networks, with each Node (networking), node (computer used as a server) running its own instance of an operating system. In most circumstances, all of the nodes use the same hardware and the same operating system, although in some setups (e.g. using Open Source Cluster Application Resources (OSCAR)), different operating systems can be used on each computer, or different hardware. Clusters are usually deployed to improve performance and availability over that of a single computer, while typically being much more cost-effective than single computers of comparable s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Replication (computer Science)
Replication in computing refers to maintaining multiple copies of data, processes, or resources to ensure consistency across redundant components. This fundamental technique spans database management system, databases, file system, file systems, and distributed computing, distributed systems, serving to improve high availability, availability, fault-tolerance, accessibility, and performance. Through replication, systems can continue operating when components fail (failover), serve requests from geographically distributed locations, and balance load across multiple machines. The challenge lies in maintaining consistency between replicas while managing the fundamental tradeoffs between data consistency, system availability, and Network partition, network partition tolerance – constraints known as the CAP theorem. Terminology Replication in computing can refer to: * ''Data replication'', where the same data is stored on multiple data storage device, storage devices * ''Computation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Referential Integrity
Referential integrity is a property of data stating that all its references are valid. In the context of relational databases, it requires that if a value of one attribute (column) of a relation (table) references a value of another attribute (either in the same or a different relation), then the referenced value must exist. For referential integrity to hold in a relational database, any column in a base table that is declared a foreign key can only contain either null values or values from a parent table's primary key or a candidate key. In other words, when a foreign key value is used it must reference a valid, existing primary key in the parent table. For instance, deleting a record that contains a value referred to by a foreign key in another table would break referential integrity. Some relational database management systems (RDBMS) can enforce referential integrity, normally either by deleting the foreign key rows as well to maintain integrity, or by returning an error and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
