CQL Database Management System (V.6.8) CQL Database Management System (V.6.8)
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386/ix
AT&T UNIX System V
IBM RS/6000/AIX
PC-MS/DOS
SCO UNIX
XENIX
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C
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Combines with B-tree file system to form database and program
development system. Supports ANSI X3.135 SQL language specification.
Provides on-line interpreter and C program interface. Includes
portable application support system, data definition language, data
manipulation language, data types and other features. Provides C
program library, Report Generation System, Portable Windowing System
and Screen I/O System.Îïèñàíèå-Ò
Combines with B-tree file system for form database and program
development system. Portable across operating systems, compilers and
hardware platforms. Supports ANSI X3.135 SQL language specification.
Includes Portable Application Support System, which offers the report
generation system, the portable windowing system and the screen I/O
system. Uses indices to optimize queries. Optimizing algorithm
chooses the best indices to use with comparisons, ANDs, ORs and
subqueries. Supports variable length string fields with B-tree
systems providing variable length record support. Offers configurable
maximum field and record lengths. Allows user to develop an interface
to most B-tree file systems. Confines all C library calls to a single
module, so that modifications due to peculiarities of a compiler's
library are confined to that one module. Creates a view with a CREATE
VIew statement that includes a SEE clause. Allows only data which
satisfies the VIEW's SELECT statement to be inserted into the table.
Checks updates to prevent changes to data which cause the data to no
longer satisfy the SELECT statement. Subqueries allow the results of
one SELECT statement to be used as data input for another SELECT
statement. Supports EXEC SQL or direct function calls. Offers left,
center or right justification of report columns. Provides truncation,
wrapping or word wrapping for long strings. Source code allows
customization for other languages and environments.Ñòîèìîñòü=$495 (source code incl.) ÊÎÌÏÀÍÈÈ
Machine Independent Software Corp.
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Machine Independent Software Corp.
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491-B Carlisle Dr., Herndon, VA 22070
Òåëåôîí=703–435–0413
ÒåëåôîíÒåõ=Use main no.
Ôàêñ=703–437–8640