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SQL refers to Structured Query Language, a kind of language used to access, update and manipulate database. In SQL, ROLLBACK is a command that causes all data changes since the last START TRANSACTION or BEGIN to be discarded by the relational database management systems (RDBMS), so that the state of the data is "rolled back" to the way it was before those changes were made.
Microsoft Learn is a library of technical documentation and training for end users, developers, and IT professionals who work with Microsoft products. Microsoft Learn was introduced in September 2018. [ 1 ]
Required skills for database administrators include knowledge of SQL, database queries, database theory, database design, specific databases, such as Oracle, Microsoft SQL Server, or MySQL, storage technologies, distributed computing architectures, operating systems, routine maintenance, recovery, and replication/failover. [3] [4] [5] [6]
In addition to certification obtained by taking courses and/or passing exams (and in the case of CISSP and others noted below, demonstrating experience and/or being recommended or given a reference from an existing credential holder), award certificates also are given for winning government, university or industry-sponsored competitions ...
Certifications were earned by passing exams aligned to a specific certification offering. Typically multiple examinations were required to obtain either a hardware centered certification such as the MCSE (Microsoft Certified Systems Engineer) or a more software orientated offering such as the MCSD (Microsoft Certified Solutions Developer).
Certification and accreditation is a two-step process that ensures security of information systems. [1] Certification is the process of evaluating, testing, and examining security controls that have been pre-determined based on the data type in an information system. The evaluation compares the current systems' security posture with specific ...
Certification programs are often created or endorsed by professional associations, but are typically completely independent from membership organizations. Certifications are very common in fields such as aviation, construction, technology, environment, and other industrial sectors, as well as healthcare, business, real estate, and finance.
ISO 22301 is an international standard for business continuity management systems.It was developed in March 2012 by International Organization for Standardization.The goal of the standard is to specify requirements to plan, establish, implement, operate, monitor, review, maintain and continually improve a documented management system to protect against, reduce the likelihood of occurrence ...