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Clicking on an icon or running from the command line, a script, the Run dialogue, etc. will by default run a plain text file containing the code. A Windows Script File (.wsf) is an XML file that can contain more than one script in more than one language in addition to other elements, and are executed by the Windows Script Host.
ETL software typically automates the entire process and can be run manually or on recurring schedules either as single jobs or aggregated into a batch of jobs. A properly designed ETL system extracts data from source systems and enforces data type and data validity standards and ensures it conforms structurally to the requirements of the output.
User Defined Functions (UDF), which are custom functions written to supplement Excel's set of built-in functions, supports the increased number of cells and columns. UDFs now can also be multithreaded. Server side UDFs are based on the .NET Managed code. Importing data from external sources, such as a database, has been upgraded.
These are commands to backup and restore files from an external disk. These appeared in version 2, and continued to PC DOS 5 and MS-DOS 6 (PC DOS 7 had a deversioned check). In DOS 6, these were replaced by commercial programs (CPBACKUP, MSBACKUP), which allowed files to be restored to different locations. [1]
Get answers to your AOL Mail, login, Desktop Gold, AOL app, password and subscription questions. Find the support options to contact customer care by email, chat, or phone number.
Database maintenance uses file locking, whereby it can serialize access to the entire physical file underlying a database. Although this does prevent any other process from accessing the file, it can be more efficient than individually locking many regions in the file by removing the overhead of acquiring and releasing each lock.
The database schema is the structure of a database described in a formal language supported typically by a relational database management system (RDBMS). The term " schema " refers to the organization of data as a blueprint of how the database is constructed (divided into database tables in the case of relational databases ).
Notice that the motherhood function, X = mother (Y) is represented by a relation, as in a relational database. However, relations in Prolog function as callable units. For example, the procedure call ?-parent_child (X, charles) produces the output X = elizabeth. But the same procedure can be called with other input-output patterns. For example: