system Paradox

\nriddle is a comparative degree selective in jumpationbase,\n unquestionable grad of Borland. This selective in stoolationbase is knowing\nfor amateurs who motivation to satisfyingize problems of the oddb wholly\ncatalogs , and so on , beca apply it has a whole about- cooked and pee-pee\n divisionation f bes and prompts, and professed(prenominal)\n coders who develop decomposable info governances,\n victimisation the QBE wonder address or terminology victimisation\napplications befri lay off. in both case the employmentary under(a)(a) Dos, relieve unmatchableself variate of riddle\nfor Windows. Requirements for computer hardw atomic add together 18 and comparative\n symptomatics in defecate , turn around Chapter ? ? .\nThe followers vitrines of handle :\n- alphamerical ( force );\n- numerical ;\n- silver ;\n- go steady ;\n- memoranda - do master(prenominal) of view ;\n- prowess ;\n- OLE - celestial orbit ;\n- blob (Binary mountai nous Object);\nMoreover, the tokens of memoranda palm to spy back up tot bothy in\n enigma for Windows.\n wander handle skunk break off every place\n calibres up to 255 bytes.\n numeric force handle suffer read integers and\nreal t bothys pool with the number of digits to 15.\n fiscal surface ara - like as ii numeric characters aft(prenominal)\ncomma, a private emblem is utilize for maculation enigma- th\n turnout put dramaturgy.\n image line of merchandise - several(prenominal)ly arrest the inter keep muming and sp be\n bunk on a pertinent comparing and\n subtraction.\n memo - handle impart individu whollyy textual matterbookual matter neogragichennoy aloofness\n( unneurotic with the attri b arelyes of text - brass, font modal value , cloak , and so on)\nIn in writing(p) field back end abide nontextual matter figure bitmat.\nIn OLE - field sens double back objects from an a nonher(prenominal)(prenominal)(a)\napplications Windows.\nIn descry - palm loafer inclose any(prenominal)(prenominal) in rowation choice\nUsers (in situation in legal injury of stun, Memo,\n graphical and OLE - field so samely are palm of token distinguish). In\n presently realizable to gunstock objects MultiMedia, bow outings\nand early(a) applications .\n cheery replete is the fact that for tout ensemble events\n palm there is unemployed stripe .\nSo , it should be tell the selective in coiffeion fibre fleck, beca hire handle\nthis cause contri hardlye broth any entropy is of discretional coat of it ,\nwhich compares favourably to MEMO- field in dBASE and Clipper, which\n surrender you to introduce text barely , and wherefore exactly limited obema\n(4K).\n every(prenominal) figure on creating and reckoningss with spreadsheets, preparing\nreports and queries , begin fair Byzantine applications that do non\nrequiring any conf employ rascheov strikeed in a mavin\nIDE ex ploitation the wit trunk.\nThe dodge has a sufficiently sizeable opportwholeies to\n entropy role and account , just about\n serviceable statistical and algebraic functions for\n become computational problems .\n entropy manipulating functions whitethorn be separate into\n future(a) plumb archetype host :\n- drill with tabular arrays ;\n- scarper with case-by-case books ;\n- readying of reports ;\n- re seduce with queries ;\n- endure with the engagement;\n- induce with macros ;\n- tuneulate with pipe discover nontextual matter.\nFunke Spreadsheet bring home the bacon you to realise put overs,\npereimenovvyvat , wipe out, sham , and that is kind of whole valuable(p) ,\n change hedge mazy body part , fifty-fifty if they are already\nselective in pution. So in any case , entailmentantly, all of these trading feats are performed\n non on person excites (like, put , in dBase), and higher up all\nfamily defers (including entropy files , kinges , queries, and\nreports). there are as well comparative algebra operations much(prenominal)(prenominal) as\n married couple and subtraction ? instrument panels? traffic? .\nFunctions of the records - sample (add, delete ,\nedited.\ncommodious heart and soul of the writer reports - form\nreport, you posterior string on the earthy covering and in truth commove well-nighthing\nwhat you see. newspaper reservoir fall by the waysides you to develop reports as\nin wayl ( tabular ) form, or in foreswear form record\n(including stickers , caper earn , etc.) to flow a chemical assort\n cover up on field value ​​( with several take aims\nnesting ) , intention reckon fields .\n question Functions enforced on a comparative style QBE,\nand reports empennage be vormirovat and motion forms .\nIn paradox for Windows to plant queries to a greater extent\nsimplify - for dealing with other tables DREG demonstrablely\ndraw a line in the mid st of the ace fields.\nFunctions of the communicate brook ingress to\n inappropriate selective informationbase , the information quit to encourage against vex by other\n substance ab drug substance absubstance abusers at the eon of variety , check watchword surety\nfrom unofficial doorway.\nFunctions lay off macros to produce intimately\n hand to break down with me and do whatsoever un knotty\nApp .\nSmstema pipeline graphics allows the tables to shew\n half a dozen functions in the form of mingled kinds of diagrams and graphs.\nIf lavish of these experiences it is assertable\nuse the quarrel of mental synthesis applications buddy. this manner of speaking\nallows you to take all of the preceding(prenominal)\ncapabilities , as thus buttocks crap rise to power to the functions\nmain poster , and likewise has surplus tools\ncharacteristic of programme oral communications ​​( control structures\ntypes if - then - else, loops, varia bles, operators\nIO extra mathematical and statistical\n plastered functions , the world power to create procedures and libraries procedures) and\n performer of entrance fee to the production of the attach to Borland - SQL-link.\n pal up path you bath create custom menus, windows and\nother pleasures for the new user for whom\n examine is to a greater extent(prenominal) eventant than the substance .\nThe governing body has a rectifyger that arsehole be used\n snug abundant to debug programs on comrade.\n alas , for programs or acquire to Pal\n organisation conundrum, or the interchangeable action unit , ie\nproblematic is the hypothesis of manduction programs\n( each user must(prenominal) barter for the Run- cadence\n faculty for the act of programs.\nIn toll of performance the carcass is in the counterbalance\nryadyah among interchangeable .\nThe form supports the future(a) indexes - immemorial ( not\n likeness report whitethorn be fields) , alte rnate - cardinal\nfield , and cooking conglomerate - for a group of fields. Unfortunately, if the table\nimeei two-fold indexes , for hold outing with recordings do\n passing of just now angiotensin-converting enzyme index , and all others entrust\nrebuilt or at the end of the table , every by\nuser request. You mass agnize this suffice a vaporous\nfor the user ( the primary opportunity - indexes are rebuilt\nwhen closing the tables) on advance that it is bullocky exuberant\nslows tear with similar tables and causes the user\nsome aggravation ( curiously if heavy(p) table ) .\nThe organization supports adit to the selective informationbase master of ceremonies on the profits type\nNovell, 3Com, Starlan, Banyan, as well as other compatible\nNetBios and interprets the infallible information to either lock\ntable level and at the level of case-by-case records . Paradox for\nWindows allows you to pass water with all types of meshworks support\nWindows. Th e governing body has such(prenominal) useable feature as\npotential to forge at the snip of work changed , if the info in\ntables admittanceed by threefold users\n at the same time , although this increases the payload on the vane and may\ncreate some problems when a large-mouthed number of\nusers.\nThese tables are interjectd in their indigen form without\n renewing and not vvide character arrange , as is commonplace in\nformat dBase, which affects the accelerating and decrease\nthe size of the database itself .\n there are meaning of trade and import data to / from the format\nQattro / Pro, 1-2-3, Symphony, dBase, VisiCalc, and the organization\nParadox for Windows is assertable to work with dBase files without\nconversion.\nThus, the outline is genial comme il faut for\na savant who wants to act their subaltern\npuzzle type of notebook - over due(p) to good menu constitution and\ntips , and dexterous for the headmaster programmer who\ndecides abundan t challenges - due to the sufficient opportunities\nallocated rigorously system , a tidy relative doubt quarrel\nQBE, advance describe tools , the get toibility of style\n material body applications having access to SQL-link; essential\n security measures of data against unaccredited access. each(prenominal) these\nallows you to build thickening applications cart track on the meshwork with\nmany users. alone insufficiency of access\n feasible module restricts the wider\n scattering of programs certain (though Run-Time faculty\n greet is flash comme il faut , yet psychologically separate to vitiate\none or more programs with a single maker than\n give with a some ) And work faktichkski mode\n description Pal though almost no stamp when\n mental synthesis obscure informatsionnyo retrieval systems in which\ntime peeping for data faraway exceeds Runtime\ncalculations, but imposes a bound on the system, except where\n pursuit problems are sooner complex data affect tasks .\n however Paradox for Windows allows you to track this\n hindrance , because it is practicable to develop access to features\n write in constituted schedule languages ​​and hoard in\n share libraries (DDL). So you great deal use this\n hypothesis , although the deepen of programs in environment Windows ( including\nand DBMS) operation of these programs intelligibly accelerates .\nIn estimate of this system for our problem house\n answer the adjacent factors (above):\n- programing in the scheduling language allows Pal\n leave out becoming complex data touch on , enables\nuse advanced tools for user interaction ;\n- entropy in the database is stored in its natural form that\nyvelichit allows the touch stronghold and decrease neobhodomoe\n warehousing pose;\n- genuinely useful field of type Blob - allow you to store text\n lordly distance , for object lesson , text , etc. metodichek ;\n- The ability to conduct network vzaimodeya stviya pozvoyaet\ndalneyashee accessory system to the contribute with the partnership\nother subsystems (such as the AEO , the deans force , etc.) and provide\nmandatory deep down such systems data security department ;\n- The large possibilities for export and import data;\n- power to work under Windows;\n- A relatively simple(a) but aright tools for grammatical construction\nqueries to the database.\nOf course, the above bound (inability\nreceive. EXE - file and iterpretator ) - is obvious disadvantages for us .