Cobol

Lallai, yin lissafin ƙididdiga a cikin COBOL na iya haifar da ƙalubale a wasu lokuta, amma ana iya shawo kan wannan ƙalubalen tare da kyakkyawar fahimta da ƙwarewar harshen shirye-shirye. COBOL, ƙaƙƙarfan Harshen Kasuwanci na gama-gari, babban yaren shirye-shirye ne don aikace-aikacen kasuwanci. Harshe ne da ake amfani da shi sosai a tsarin gudanarwa na kamfanoni da gwamnatoci. Yanzu, bari mu nutse cikin maganin matsalar kuma mu rushe lambar ta hanyar mataki-mataki.

Kara karantawa

A cikin duniyar babban kwamfuta, Hanyar Samun Ma'ajiyar Wuta (VSAM) ta zama ginshiƙi na asali. Yana ba da damar adanawa, samun dama, da sarrafa bayanai ta hanyar samar da ayyuka fiye da sauƙi na tsari da hanyoyin ajiya kai tsaye. Yin aiki tare da fayil ɗin STATUS VSAM ya ƙunshi amfani da Cobol, yaren shirye-shiryen kasuwanci na farko.

Kamar yadda tsohuwar maganar ke cewa, "Matsalar da aka bayyana da kyau ita ce matsalar da aka warware rabin-rabi." A wannan yanayin, ƙalubalen da ake fuskanta sau da yawa lokacin aiki tare da fayil na STATUS VSAM ya haɗa da kurakurai da sarrafa bayanai yadda ya kamata. Sa'ar al'amarin shine, tare da ayyuka masu ƙarfi na Cobol da fahimtar fahimtar yadda VSAM ke aiki, wannan matsalar ta zama mai yiwuwa.

Fahimtar VSAM FILES
Mu shiga cikin mafita. Cobol, kasancewa babban yare, yana ba da damar sarrafa fayilolin VSAM ta hanyar samar da jumlar MATSAYI fayil. Wannan sashe yana taimakawa wajen sarrafa kuskure a ayyukan I/O fayil. Madaidaicin tsarin wannan juzu'in shine 'MATSAYIN DATA-suna-1'. A wannan yanayin, `data-name-1` filin haruffa biyu ne inda haruffan farko ke nuna babban matsayi, na biyu kuma don takamaiman dalili (idan akwai).

ZABEN FILESUNA ZUWA 'VSAMFILE'
KUNGIYAR ANA ILMI
YANAYIN SAMUN BANZA
MATSAYIN FILE WS-VSAM-MATSAYI.

Fayil STATUS ɗin da aka yi amfani da shi anan shine `WS-VSAM-STATUS`, wanda ke nuna matsayin kowane aikin fayil. Ta hanyar duba wannan matsayi bayan kowane aiki, sarrafa kuskure yana zama mai sauƙi.

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Shirye-shiryen Cobol da fayilolin VSAM: Bayanin Code

Da fari dai, sashin SELECT FILENAME yana ma'anar ayyana sunan fayil ɗin. Sanya wa 'VSAMFILE' yana nuna cewa shirinmu na Cobol zai koma ga fayil ɗin VSAM ta wannan sunan fayil na alama. Bugu da ƙari, ORGANIZATION IS INNDEXED clause yana ƙayyadaddun cewa fayil ɗin an tsara shi a cikin tsari mai ƙididdiga. HANYOYIN SAMUN RANDOM yana ba da damar kowane rikodi don samun damar shiga kai tsaye maimakon jere.

Kara karantawa

Tabbas, ga labarin da kuka nema:

Kyawawan gidajen yanar gizo na zamani ya ta'allaka ne a cikin mu'amalarsu da amfaninsu. Zuwan JavaScript ya hura rayuwa cikin in ba haka ba a tsaye shafukan yanar gizo, yana tabbatar da gogewar mai amfani. Ɗayan irin wannan haɓakawa ya haɗa da “slutsun gungurawa”, haɗa raye-raye da ƙwarewar mai amfani mara kyau, jawo hankalin mai amfani da aikin tuƙi. {

Kara karantawa

Sake fasalin fasali ne mai ƙarfi a cikin yaren COBOL wanda ke sauƙaƙe amfani da ƙwaƙwalwar ajiya cikin hikima. Yana bawa mai tsara shirye-shirye damar amfani da sararin ƙwaƙwalwar ajiya iri ɗaya don adana bayanai daban-daban a lokuta daban-daban. Tsarin yin amfani da sake fasalin yana ƙara ƙimar ƙimar lamba. Don ci gaba da bincika ayyukan, bari mu zurfafa cikin maganinta tare da bayanin mataki-mataki na lambar.

Kara karantawa

COBOL, ƙaƙƙarfan Harshen Kasuwanci na gama-gari, ya kasance ci gaba mai dorewa a fannin kasuwanci da kuɗi tsawon shekaru da yawa. Tsawon rayuwarsa yana nuna mahimmancinsa a duniyar shirye-shirye. Duk da an halicce shi a tsakiyar karni na ashirin, har yanzu yana taka muhimmiyar rawa a aikace-aikacen kasuwanci na zamani, musamman a cikin ayyukan da suka shafi karatun fayiloli. Wannan aikin yana da mahimmanci saboda fayiloli babban matsakaicin ajiya ne kuma karatun bayanan fayil shine babban aikin da ake buƙata a yawancin aikace-aikacen kasuwanci.

Kara karantawa

Python Pygments babban ɗakin karatu ne wanda ya zo tare da bakan gizo na dama mai salo. A matsayinka na mai haɓakawa, yana da kama da samun gabaɗayan titin jirgin sama na kyauta a yatsanka. Tare da Pygments, zaku iya tsara lambar ku ta hanyar tursasawa wanda ba wai yana haɓaka iya karatu kawai ba har ma yana haɓaka ƙwarewar mai amfani gabaɗaya. Wani yana iya cewa, yana kawo sabbin salon salo da kuma abubuwan da ke faruwa daga wuraren shakatawa zuwa wuraren aikin ku na shirye-shirye. Lokaci ya yi da za a koyi yadda ake shigarwa da yin cikakken amfani da Python Pygments.

Kara karantawa

Lambobin Prime rike matsayi mai mahimmanci a fannin lissafi da kwamfuta. Mahimmanci, babban lamba lamba ce ta halitta wacce ta fi ɗaya girma kuma ba ta da masu raba gaskiya sai ɗaya da kanta. Misali, lambobi shida na farko sune 2, 3, 5, 7, 11, da 13.

Kara karantawa

A matsayina na mai haɓakawa na COBOL, na fahimci yadda yake da mahimmanci a wargaza matsaloli masu rikitarwa zuwa guntuwar sarrafawa. Hakazalika, a matsayina na ƙwararriyar kayyayaki, na kuma fahimci mahimmancin wargaza salo masu sarƙaƙƙiya da duban yanayin da ake iya fahimta. Bari mu bincika hanyar “buga” a cikin lambar COBOL da yadda take dacewa da duniyar catwalk da fashion.

Kara karantawa