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The reason MyISAM allows for fast reads is the structure of its indexes: each entry points to a record in the data file, and the pointer is offset from the beginning of the file. This way records can be quickly read, especially when the format is FIXED. Thus, the rows are of constant length.
The Windows 95 Start menu. The Start menu first appeared in Windows 95.It was made to overcome the shortcomings of Program Manager in previous operating systems. [5] Program Manager consisted of a simple multiple document interface (MDI) which allowed users to open separate "program groups" and then execute the shortcuts to programs contained within.
MySQL (/ ˌ m aɪ ˌ ɛ s ˌ k juː ˈ ɛ l /) [6] is an open-source relational database management system (RDBMS). [6] [7] Its name is a combination of "My", the name of co-founder Michael Widenius's daughter My, [1] and "SQL", the acronym for Structured Query Language.
SELECT FIRST 10 * from T : Ingres: SELECT FIRST 10 * FROM T order by a : Informix: SELECT SKIP 20 FIRST 10 * FROM T order by c, d : Informix (row numbers are filtered after order by is evaluated. SKIP clause was introduced in a v10.00.xC4 fixpack) SELECT TOP 10 * FROM T: MS SQL Server, SAP ASE, MS Access, SAP IQ, Teradata
Windows 7, Windows Server 2008 R2, Windows Server 2012, Windows 8, Windows 8.1, Windows 10 [65] Office 2013 Professional and Professional Plus Access 2016: 16.0: September 22, 2015: 16 Windows 7, Windows 8, Windows 8.1, Windows 10 [66] Office 2016 Professional and Professional Plus Access 2019: September 24, 2018 Windows 10 [67]
The latest version of MDAC (2.8) consists of several interacting components, all of which are Windows specific except for ODBC (which is available on several platforms). ). MDAC architecture may be viewed as three layers: a programming interface layer, consisting of ADO and ADO.NET, a database access layer developed by database vendors such as Oracle and Microsoft (OLE DB, .NET managed ...
IBM also introduced "adaptive compression" capability in DB2 10.1, a new approach to compressing data tables. In June 2013, IBM released DB2 10.5 (code name "Kepler"). On 12 April 2016, IBM announced DB2 LUW 11.1, and in June 2016, it was released. In mid-2017, IBM re-branded its DB2 and dashDB product offerings and amended their names to "Db2".
dBASE for Windows came out too late to be a significant player in the Windows market: most dBASE programmers by then had migrated to Microsoft FoxBASE, a very similar database tool. Borland itself retained the InterBase/IDAPI server and focused efforts on its Delphi tools, which over the years gave it an influential but small part of the data ...