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Many trim functions have an optional parameter to specify a list of characters to trim, instead of the default whitespace characters. For example, PHP and Python allow this optional parameter, while Pascal and Java do not. With Common Lisp's string-trim function, the parameter (called character-bag) is required.
The language includes several collection methods used to manipulate collection elements: for example FIRST, LAST, NEXT, PRIOR, EXTEND, TRIM, DELETE, etc. Index-by tables can be used to simulate associative arrays, as in this example of a memo function for Ackermann's function in PL/SQL.
There is no standard trim function in C or C++. Most of the available string libraries [55] for C contain code which implements trimming, or functions that significantly ease an efficient implementation. The function has also often been called EatWhitespace in some non-standard C libraries.
Starting a line with a label instead of whitespace creates a tag which can be used as the target of a goto, procedure call or function call (functions return values, procedures do not). The label can be used from outside the parent routine's scope by adding the routine name separated by a caret character <label>^<routine> (e.g. SUBRTN^ABC).
Non-deterministic TRIM: Each read command to the logical block address (LBA) after a TRIM may return different data. Deterministic TRIM (DRAT): All read commands to the LBA after a TRIM shall return the same data, or become determinate. Deterministic Read Zero after TRIM (RZAT): All read commands to the LBA after a TRIM shall return zero.
SQL includes operators and functions for calculating values on stored values. SQL allows the use of expressions in the select list to project data, as in the following example, which returns a list of books that cost more than 100.00 with an additional sales_tax column containing a sales tax figure calculated at 6% of the price.
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Category: Articles with example SQL code. 2 languages. ... Window function (SQL) This page was last edited on 1 December 2013, at 21:24 (UTC). ...