{"id":3997,"date":"2026-02-17T17:48:20","date_gmt":"2026-02-17T17:48:20","guid":{"rendered":"https:\/\/datissima.tech\/?p=3997"},"modified":"2026-02-17T19:26:34","modified_gmt":"2026-02-17T19:26:34","slug":"5-la-cara-amable-de-la-base-de-datos-formularios-para-introducir-y-ver-datos","status":"publish","type":"post","link":"https:\/\/datissima.tech\/ca\/5-la-cara-amable-de-la-base-de-datos-formularios-para-introducir-y-ver-datos\/","title":{"rendered":"5. La cara amable de la base de dades: formularis per introduir i veure dades"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"3997\" class=\"elementor elementor-3997\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b8dd036 e-flex e-con-boxed e-con e-parent\" data-id=\"b8dd036\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-011258e elementor-widget elementor-widget-text-editor\" data-id=\"011258e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><style>\na {\n    text-decoration: none;\n    color: #464feb;\n}\ntr th, tr td {\n    border: 1px solid #e6e6e6;\n}\ntr th {\n    background-color: #f5f5f5;\n}\n<\/style><\/p><div><div class=\"paragraph-in-scc-markdown-text ___1ngh792 ftgm304 f1iaxwol\"><div><div class=\"paragraph-in-scc-markdown-text ___1ngh792 ftgm304 f1iaxwol\"><strong>Qu\u00e8 \u00e9s exactament un <em>formulari<\/em> a Microsoft Access i per a qu\u00e8 serveix?<\/strong> Un formulari \u00e9s una <strong>interf\u00edcie gr\u00e0fica<\/strong> que permet a l&#039;usuari <strong>interactuar de manera f\u00e0cil i visual<\/strong> amb les dades duna base de dades. En lloc de treballar directament sobre les taules (que s&#039;assemblen a fulls de c\u00e0lcul plens de files i columnes), un formulari presenta les dades de manera organitzada i amigable. A trav\u00e9s d&#039;un formulari es poden <strong>afegir nous registres, modificar els existents, eliminar dades o simplement consultar-los<\/strong> de manera controlada i intu\u00eftiva. Els formularis s\u00f3n especialment \u00fatils per a usuaris sense coneixements t\u00e8cnics avan\u00e7ats perqu\u00e8 <strong>eviten la necessitat de manejar directament les taules o escriure consultes<\/strong>; al seu lloc, ofereixen camps amb etiquetes, botons i indicadors que guien l&#039;usuari a les seves tasques.<\/div><div class=\"paragraph-in-scc-markdown-text ___1ngh792 ftgm304 f1iaxwol\">Imagina que la teva base de dades \u00e9s com una <strong>biblioteca<\/strong> f\u00edsica. Modificar les taules directament seria com cercar i editar informaci\u00f3 en llibres de registre enormes: trigat i propens a errors. <strong>Els formularis s\u00f3n m\u00e9s aviat com a fitxes o pantalles dissenyades perqu\u00e8 puguis veure i omplir la informaci\u00f3 de cada registre de forma clara i senzilla<\/strong>. Per exemple, un formulari de <strong>\u201cNou Llibre\u201d<\/strong> a la base de dades de la biblioteca presentaria camps individuals (T\u00edtol, Autor, Any, Categoria, etc.) que pots emplenar un per un. Aix\u00f2 \u00e9s molt m\u00e9s f\u00e0cil i segur que introduir un nou llibre a la taula de <strong>Llibres<\/strong> manualment, on hauries de despla\u00e7ar-te fins a una nova fila i assegurar-te de posar cada dada a la columna correcta. En un formulari, cada dada va a la seva <strong>casella<\/strong> corresponent, amb una etiqueta descriptiva, reduint aix\u00ed la possibilitat d&#039;equivocar-se&#039;n.<\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-448b12f e-con-full e-flex e-con e-child\" data-id=\"448b12f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-5d47eb8 e-con-full e-flex e-con e-child\" data-id=\"5d47eb8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-792f64c elementor-widget elementor-widget-heading\" data-id=\"792f64c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Interf\u00edcie amigable<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3b7443b elementor-widget elementor-widget-text-editor\" data-id=\"3b7443b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>El formulari presenta les dades de manera\u00a0<strong>visual i ordenada<\/strong>, mostrant nom\u00e9s la informaci\u00f3 necess\u00e0ria. Aix\u00f2 fa que sigui molt m\u00e9s f\u00e0cil d&#039;entendre i utilitzar en comparaci\u00f3 de veure directament una taula plena de files i columnes.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-53728ed e-con-full e-flex e-con e-child\" data-id=\"53728ed\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6a70372 elementor-widget elementor-widget-heading\" data-id=\"6a70372\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Menys errors<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2bfcc5e elementor-widget elementor-widget-text-editor\" data-id=\"2bfcc5e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>En introduir dades a trav\u00e9s de formularis, es fa de forma\u00a0<strong>controlada<\/strong>. Es poden afegir\u00a0<em>validacions<\/em> y\u00a0<em>restriccions<\/em> (com a camps obligatoris o formats de dades) per ajudar a\u00a0<strong>minimitzar errors i mantenir la consist\u00e8ncia<\/strong> a la informaci\u00f3 emmagatzemada.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0d031e9 e-con-full e-flex e-con e-child\" data-id=\"0d031e9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e12b840 elementor-widget elementor-widget-heading\" data-id=\"e12b840\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Controls \u00fatils<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-76a3074 elementor-widget elementor-widget-text-editor\" data-id=\"76a3074\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Els formularis permeten incloure elements interactius: per exemple,\u00a0<strong>llistes desplegables<\/strong> per seleccionar valors sense teclejar-los, botons per executar accions, caselles de verificaci\u00f3, etc. Aix\u00f2 no \u00e9s possible en una taula tradicional i\u00a0<strong>millora\u00a0<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ab93cbb elementor-widget elementor-widget-text-editor\" data-id=\"ab93cbb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><style>\na {\n    text-decoration: none;\n    color: #464feb;\n}\ntr th, tr td {\n    border: 1px solid #e6e6e6;\n}\ntr th {\n    background-color: #f5f5f5;\n}\n<\/style><\/p><div><div class=\"paragraph-in-scc-markdown-text ___1ngh792 ftgm304 f1iaxwol\">Un altre avantatge important \u00e9s que <strong>els canvis o dades introdu\u00efts a trav\u00e9s d&#039;un formulari es desen directament a la taula subjacent<\/strong>. El formulari per si mateix no emmagatzema dades, sin\u00f3 que actua com un \u201ctraductor\u201d entre tu i la taula. Per exemple, si en un formulari canvies el tel\u00e8fon d&#039;un soci de la biblioteca, aquest nou tel\u00e8fon queda desat autom\u00e0ticament a la taula de <em>Socis<\/em>.<\/div><h2>Difer\u00e8ncies entre formularis i taules a Access<\/h2><div class=\"paragraph-in-scc-markdown-text ___1ngh792 ftgm304 f1iaxwol\">Val la pena recalcar les difer\u00e8ncies b\u00e0siques entre fer servir formularis i fer servir directament les taules:<\/div><ul><li class=\"___ccc16d0 fje8fi8 f1ng9h0j f1bwykku f18jd3zf\"><strong>Visualitzaci\u00f3:<\/strong> Una <em>taula<\/em> mostra diversos registres alhora en forma de llista (files i columnes), semblant a Excel. Un <em>formulari<\/em>, en canvi, sol mostrar <strong>un registre alhora<\/strong> (o uns quants) de forma personalitzada, en camps individuals amb etiquetes. Aix\u00f2 significa que la informaci\u00f3 apareix a <strong>pantalles<\/strong> o <em>fitxes<\/em> m\u00e9s f\u00e0cils de llegir, especialment quan un registre t\u00e9 molts camps.<\/li><li class=\"___ccc16d0 fje8fi8 f1ng9h0j f1bwykku f18jd3zf\"><strong>Facilitat d&#039;\u00fas:<\/strong> Les taules s\u00f3n funcionals per\u00f2 poden resultar aclaparadores si contenen moltes dades o camps t\u00e8cnics. Els formularis estan pensats per ser <strong>f\u00e0cils d&#039;usar per qualsevol persona<\/strong>, fins i tot sense con\u00e8ixer Access a fons. Per exemple, en un formulari podeu tenir instruccions breus al costat de cada camp, formatar l&#039;aparen\u00e7a, i col\u00b7locar els camps en l&#039;ordre l\u00f2gic d&#039;emplenament (no necess\u00e0riament l&#039;ordre de columnes de la taula).<\/li><li class=\"___ccc16d0 fje8fi8 f1ng9h0j f1bwykku f18jd3zf\"><strong>Protecci\u00f3 de la informaci\u00f3:<\/strong> Els formularis actuen com una <strong>capa interm\u00e8dia<\/strong> entre lusuari i la taula. Quan restringiu quins camps es mostren o es poden editar, redu\u00efu el risc que alg\u00fa modifiqui dades que no hauria de fer. A m\u00e9s, en poder incorporar validacions, es <strong>eviten dades incomplets o amb format incorrecte<\/strong>, cosa que a la vista de taula resultaria m\u00e9s dif\u00edcil de controlar.<\/li><\/ul><div class=\"paragraph-in-scc-markdown-text ___1ngh792 ftgm304 f1iaxwol\">En resum, <strong>un formulari \u00e9s la \u201ccara amable\u201d de la base de dades<\/strong>: converteix la tasca de manejar dades en una cosa semblant a omplir un senzill formulari en paper o fer servir una aplicaci\u00f3 comuna, en lloc de requerir-nos bregar amb les complexitats de l&#039;estructura interna de les taules. Els usuaris interactuen amb camps amb noms comprensibles, botons i missatges d&#039;ajuda, mentre Access s&#039;encarrega que tot el que fem al formulari es reflecteixi correctament a les taules darrere del tel\u00f3.<\/div><h2>Exemple pr\u00e0ctic: formulari per afegir nous llibres<\/h2><div class=\"paragraph-in-scc-markdown-text ___1ngh792 ftgm304 f1iaxwol\">Tornant al nostre exemple de la biblioteca, suposem que volem crear un formulari perqu\u00e8 el personal bibliotecari pugui <strong>donar d&#039;alta nous llibres<\/strong> a la base de dades. Sense un formulari, haurien d&#039;obrir la taula <em>Llibres<\/em> a la vista Full de dades i escriure directament cada dada del llibre a la fila nova. Amb un formulari, en canvi, se&#039;ls presentaria una pantalla m\u00e9s intu\u00eftiva amb camps buits llestos per omplir.<\/div><div class=\"paragraph-in-scc-markdown-text ___1ngh792 ftgm304 f1iaxwol\">Per dissenyar r\u00e0pidament aquest formulari podem utilitzar el <strong>Assistent per a formularis<\/strong> d&#039;Access, que ens guiar\u00e0 en uns quants passos:<\/div><ol><li class=\"___ccc16d0 fje8fi8 f1ng9h0j f1bwykku f18jd3zf\">Aneu a la pestanya <strong>Crear<\/strong> de la cinta d&#039;Access i fes clic a <strong>Assistent per a formularis<\/strong>.<\/li><li class=\"___ccc16d0 fje8fi8 f1ng9h0j f1bwykku f18jd3zf\">A la primera pantalla de l&#039;assistent, seleccioneu la font de dades per al formulari. En el nostre cas, tria la <strong>taula \u201cLlibres\u201d<\/strong> (has d&#039;haver-la creat pr\u00e8viament amb els seus camps, com vam aprendre en articles anteriors).<\/li><li class=\"___ccc16d0 fje8fi8 f1ng9h0j f1bwykku f18jd3zf\">A sota, apareixer\u00e0 la llista de <strong>Camps disponibles<\/strong> de la taula seleccionada. Selecciona els camps que vulguis que apareguin al formulari i passa&#039;ls a la llista de <strong>Camps seleccionats<\/strong> (pots incloure tots els necessaris: per exemple, <em>T\u00edtol<\/em>, <em>Autor<\/em>, <em>Any<\/em>, <em>Categoria<\/em>, <em>Disponible<\/em>). Despr\u00e9s fes clic a <strong>Seg\u00fcent<\/strong>.<\/li><li class=\"___ccc16d0 fje8fi8 f1ng9h0j f1bwykku f18jd3zf\">Ara l&#039;assistent preguntar\u00e0 pel <strong>disseny del formulari<\/strong>. Per aquest cas, podem escollir <strong>Columnar<\/strong> (tamb\u00e9 anomenat de \u201ccolumnes\u201d o \u201cen columnes\u201d), que sol ser ideal per mostrar un registre per pantalla. Marca aquesta opci\u00f3 i prem <strong>Seg\u00fcent<\/strong>.<\/li><li class=\"___ccc16d0 fje8fi8 f1ng9h0j f1bwykku f18jd3zf\">A la seg\u00fcent pantalla, escull un <strong>estil<\/strong> per a l&#039;aspecte visual del formulari (pots deixar el predeterminat o seleccionar el que m\u00e9s t&#039;agradi; aix\u00f2 afectar\u00e0 colors i fonts). Fes clic a <strong>Seg\u00fcent<\/strong>.<\/li><li class=\"___ccc16d0 fje8fi8 f1ng9h0j f1bwykku f18jd3zf\">Finalment, assigna un <strong>t\u00edtol<\/strong> al formulari, per exemple \u201cLlibres (formulari)\u201d o \u201cIngr\u00e9s de Llibres\u201d. Aquest t\u00edtol apareixer\u00e0 a la cap\u00e7alera del formulari. Assegureu-vos que l&#039;opci\u00f3 \u201c<strong>Obrir el formulari per veure o introduir informaci\u00f3<\/strong>\u201d estigui seleccionada (aix\u00f2 significa que en acabar l&#039;assistent s&#039;obrir\u00e0 el formulari per a \u00fas immediat) Ara feu clic a <strong>Finalitzar<\/strong>.<\/li><\/ol><div class=\"paragraph-in-scc-markdown-text ___1ngh792 ftgm304 f1iaxwol\">Aix\u00f2 \u00e9s tot! Access generar\u00e0 el formulari autom\u00e0ticament. Probablement veureu una pantalla que mostra els camps <em>T\u00edtol<\/em>, <em>Autor<\/em>, <em>Any<\/em>, etc., llestos perqu\u00e8 introdu\u00efu dades d&#039;un llibre. Tamb\u00e9 apareixeran botons de navegaci\u00f3 a la part inferior del formulari (per moure&#039;t entre registres o crear-ne un de nou).<\/div><div class=\"paragraph-in-scc-markdown-text ___1ngh792 ftgm304 f1iaxwol\">Pots provar a <strong>afegir un registre d&#039;exemple<\/strong> utilitzant el formulari: per exemple, introdu\u00efu un t\u00edtol de llibre, el vostre autor, any de publicaci\u00f3, categoria i marca si est\u00e0 disponible a la biblioteca o prestat. En passar al seg\u00fcent registre (usant el bot\u00f3 de fletxa <code>&gt;<\/code> del selector de registres a la part inferior) o en tancar el formulari, Access guardar\u00e0 autom\u00e0ticament aquest nou llibre a la taula <em>Llibres<\/em>. D&#039;aquesta manera, el personal ja no necessita obrir la taula ni preocupar-se per la ubicaci\u00f3 exacta de cada dada: <strong>el formulari s&#039;encarrega de tot en segon pla<\/strong>.<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b12e6a4 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"b12e6a4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"#\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">AUTOAVALUACI\u00d3<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-95348aa elementor-widget elementor-widget-text-editor\" data-id=\"95348aa\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><style>\na {<br \/>    text-decoration: none;<br \/>    color: #464feb;<br \/>}<br \/>tr th, tr td {<br \/>    border: 1px solid #e6e6e6;<br \/>}<br \/>tr th {<br \/>    background-color: #f5f5f5;<br \/>}<br \/><\/style><\/p><div><hr \/><h3>Bibliografia i Webgrafia<\/h3><ul><li class=\"___ccc16d0 fje8fi8 f1ng9h0j f1bwykku f18jd3zf\">Microsoft Support. (sf). <span style=\"color: #333333;\"><a style=\"color: #333333;\" href=\"https:\/\/support.microsoft.com\/es-es\/office\/introducci%C3%B3n-a-formularios-e8d47343-c937-44e8-a80f-b6a83a1fa3ae\"><em>Introducci\u00f3 a formularis<\/em><\/a><\/span>.<\/li><li class=\"___ccc16d0 fje8fi8 f1ng9h0j f1bwykku f18jd3zf\">Ivanova, E. (2025, 18 d&#039;octubre). <span style=\"color: #333333;\"><a style=\"color: #333333;\" href=\"https:\/\/dcinl.com\/que-es-un-formulario-en-access-y-para-que-sirve\/\"><em>Qu\u00e8 \u00e9s un formulari a Access i per a qu\u00e8 serveix<\/em><\/a><\/span>. DCINL.\u00a0<\/li><li class=\"___ccc16d0 fje8fi8 f1ng9h0j f1bwykku f18jd3zf\">MySQL JA. (2023). <span style=\"color: #333333;\"><a style=\"color: #333333;\" href=\"https:\/\/mysqlya.com.ar\/bases-de-datos\/base-de-datos-access-ficha-tecnica\/\"><em>Qu\u00e8 s\u00f3n i com utilitzar Formularis a Access?<\/em>\u00a0<\/a><\/span><\/li><li class=\"___ccc16d0 fje8fi8 f1ng9h0j f1bwykku f18jd3zf\">PcHardwarePro. (2024, 11 de gener). <span style=\"color: #333333;\"><a style=\"color: #333333;\" href=\"https:\/\/www.pchardwarepro.com\/que-es-un-formulario-en-access-y-los-tipos-de-formularios\/\"><em>Qu\u00e8 \u00e9s un formulari a Access i els tipus de formularis?<\/em>\u00a0<\/a><\/span><\/li><\/ul><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>\u00bfQu\u00e9 es exactamente un formulario en Microsoft Access y para qu\u00e9 sirve? Un formulario es una interfaz gr\u00e1fica que permite al usuario interactuar de manera f\u00e1cil y visual con los datos de una base de datos. En lugar de trabajar directamente sobre las tablas (que se asemejan a hojas de c\u00e1lculo llenas de filas y [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[24],"tags":[],"class_list":["post-3997","post","type-post","status-publish","format-standard","hentry","category-access"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>5. 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