cursor dipped in X - ορισμός. Τι είναι το cursor dipped in X
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  • πώς χρησιμοποιείται η λέξη
  • συχνότητα χρήσης
  • χρησιμοποιείται πιο συχνά στον προφορικό ή γραπτό λόγο
  • επιλογές μετάφρασης λέξεων
  • παραδείγματα χρήσης (πολλές φράσεις με μετάφραση)
  • ετυμολογία

Τι (ποιος) είναι cursor dipped in X - ορισμός

DATABASE CURSOR
Database cursor; SQL Cursor; Cursor (database)

cursor dipped in X      
<jargon> The metaphorical source of the electronic equivalent of a poisoned-pen letter. Derived from English metaphors of the form "pen dipped in X" (where X = e.g. "acid", "bile", "vitriol"). These map over neatly to this hackish usage (the cursor being what moves, leaving letters behind, when one is composing on-line). "Talk about a nastygram! He must've had his cursor dipped in acid when he wrote that one!" [Jargon File] (1996-12-27)
CURSOR         
1978-1982 DISK MAGAZINE
Cursor (magazine)
CURSOR: Programs for PET Computers was an early computer-based "magazine" that was distributed on cassette from 1978 and into the early 1980s. Each issue, consisting of the cassette itself and a short newsletter including a table of contents, contained programs, utilities, and games.
cursor         
1978-1982 DISK MAGAZINE
Cursor (magazine)
1. <hardware> A visually distinct mark on a display indicating where newly typed text will be inserted. The cursor moves as text is typed and, in most modern editors, can be moved around within a document by the user to change the insertion point. 2. <database> In SQL, a named control structure used by an application program to point to a row of data. The position of the row is within a table or view, and the cursor is used interactively so select rows from columns. (1996-12-27)

Βικιπαίδεια

Cursor (databases)

In computer science, a database cursor is a mechanism that enables traversal over the records in a database. Cursors facilitate subsequent processing in conjunction with the traversal, such as retrieval, addition and removal of database records. The database cursor characteristic of traversal makes cursors akin to the programming language concept of iterator.

Cursors are used by database programmers to process individual rows returned by database system queries. Cursors enable manipulation of whole result sets at once. In this scenario, a cursor enables the sequential processing of rows in a result set.

In SQL procedures, a cursor makes it possible to define a result set (a set of data rows) and perform complex logic on a row by row basis. By using the same mechanics, a SQL procedure can also define a result set and return it directly to the caller of the SQL procedure or to a client application.

A cursor can be viewed as a pointer to one row in a set of rows. The cursor can only reference one row at a time, but can move to other rows of the result set as needed.