| To use a Sybase server, you are should have | | | | access is authorized only to some records of these |
| Netscape Enterprise Server. You cannot get an | | | | tables. |
| access to Sybase from Netscape FastTrack Server. | | | | The language SQL - Watcom SQL is used in |
| Sybase has both one-line, and multiline drivers on some | | | | SYBASE SQL Anywhere. It corresponds to standards |
| Unix-platforms. If Sybase has the multiline driver for the | | | | of ANSI SQL/89 Level 2. Besides, the used language |
| concrete Unix-machine, you are obliged to use | | | | SQL supports new opportunities and expansions of |
| LiveWire for this multiline driver. On these platforms | | | | ANSI SQL/92 standards. |
| your web-server will be unpredictable with the one-line | | | | Triggers are the subroutines, which become more |
| driver. This requirement is applied both for local, and for | | | | active at approach of certain events, for example, at |
| the removed connections. It is not applied to | | | | removal of the record from the table, at records |
| Windows-platforms. | | | | updating, etc. Triggers are powerful means for |
| Company Sybase, which is a leading supplier of the | | | | maintenance of data integrity. |
| software, and company Quest Software, a leading | | | | The user types of data are data types created by the |
| supplier of databases and decisions for data | | | | user on the base data types. System tables store the |
| management have presented joint decisions Sybase | | | | whole information about the scheme of database and |
| Database Expert Option and Sybase SQL Expert | | | | objects containing in it. |
| Option for Sybase Adaptive Server Enterprise (ASE). | | | | Sybase Mirror Activator is a new program Sybase |
| The decisions, which Sybase Database Expert and | | | | decision, allowing uniting all the best of the technologies |
| Sybase SQL Expert provide, help for an optimum | | | | of synchronous mirroring disks and replication |
| productivity and migration of applied systems on | | | | transactions of database. Sybase Mirror Activator is |
| Sybase Adaptive Server Enterprise. | | | | used as an addition to already existing system of disk |
| The databases created by SYBASE SQL Anywhere, | | | | mirroring. Novelty of the decision is that by means of |
| represent relational databases. These databases | | | | disk mirroring on a reserve platform not the whole |
| consist of a set of objects. Such objects are data | | | | database is copied, but only its magazine of |
| tables, keys, indexes, views, etc. Data tables store | | | | transactions that considerably reduces volume of the |
| data, making the basic maintenance of a database. | | | | traffic. |
| Keys are sets of the attributes forming keys (primary | | | | Thus as disk mirroring is carried out in a synchronous |
| and external), intended for realization of the | | | | mode, 100 percents reliability of data transmission are |
| accelerated search of data and maintenance of | | | | kept down to the last transaction. One more important |
| reference integrity restrictions. Indexes are special | | | | advantage of the decision is that Mirror Activator |
| tables intended for fast search of the demanded | | | | enables reserve disk to be accessible in a mode "for |
| information in data tables. Views are connected sets | | | | reading", which allows using it, for example, for |
| of subsets of data tables, given to the users for | | | | systems of reports preparation, analytical systems, |
| restriction of their access to data tables. Thus access | | | | systems of decision-making, etc. |
| is absolutely forbidden to one table, and to other tables | | | | |