{"id":2889,"date":"2026-05-07T09:37:29","date_gmt":"2026-05-07T01:37:29","guid":{"rendered":"https:\/\/tekno.bali-island.com\/?p=2889"},"modified":"2026-05-07T09:37:33","modified_gmt":"2026-05-07T01:37:33","slug":"dml-in-sql-definitie-soorten-en-basiscommandos","status":"publish","type":"post","link":"https:\/\/tekno.bali-island.com\/nl\/articles\/dml-in-sql-definitie-soorten-en-basiscommandos\/","title":{"rendered":"DML in SQL: Definitie, Soorten en Basiscommando&#8217;s"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\"><strong>Definitie en Soorten DML<\/strong><\/h2>\n\n\n\n<p><strong>Data Manipulation Language (DML)<\/strong>&nbsp;is een SQL-querymethode die kan worden gebruikt nadat de databasestructuur is aangemaakt met DDL (Data Definition Language). Simpel gezegd is DML een verzameling querycommando&#8217;s die dienen om gegevens in een database te manipuleren.<\/p>\n\n\n\n<p>De belangrijkste commando&#8217;s in DML omvatten&nbsp;<strong>INSERT<\/strong>&nbsp;voor het toevoegen van gegevens,&nbsp;<strong>UPDATE<\/strong>&nbsp;voor het wijzigen of vervangen van gegevens en&nbsp;<strong>DELETE<\/strong>&nbsp;voor het verwijderen van gegevens.<\/p>\n\n\n\n<p>DML zelf wordt onderverdeeld in twee hoofdtypen:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Procedurele DML:<\/strong>\u00a0Bij dit type moeten de commando&#8217;s voor het manipuleren van gegevens vergezeld gaan van duidelijke instructies over\u00a0<em>hoe<\/em>\u00a0de gegevens in het databasebestand worden benaderd. Procedurele DML wordt vaak gebruikt in hogere programmeertalen zoals C en C++.<\/li>\n\n\n\n<li><strong>Niet-procedurele DML:<\/strong>\u00a0In tegenstelling tot procedurele DML kunnen bij niet-procedurele DML gegevens direct worden gemanipuleerd zonder dat er commando&#8217;s nodig zijn over hoe die gegevens moeten worden benaderd. Niet-procedurele DML wordt doorgaans gebruikt in DBMS (Database Management System) zoals Paradox, FoxPro en SQL.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Gebruik van de Commando&#8217;s INSERT, UPDATE en DELETE in SQL<\/strong><\/h2>\n\n\n\n<p>Hieronder volgt een gedetailleerdere uitleg van de drie basis-DML-commando&#8217;s samen met voorbeelden van het gebruik ervan:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. INSERT-commando<\/strong><\/h3>\n\n\n\n<p><strong>INSERT<\/strong>&nbsp;is een commando dat wordt gebruikt om nieuwe gegevensrijen toe te voegen of in te voegen in een tabel in de database.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Syntax:<\/strong><\/p>\n\n\n\n<p>sql<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">INSERT INTO tabelnaam (kolomgegevens) VALUES (gegevenswaarden);<\/pre>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Voorbeeld:<\/strong><\/p>\n\n\n\n<p>sql<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">INSERT INTO Jurusan (KodeJur, NamaJur) VALUES ('12', 'Teknik Informatika');<\/pre>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Uitleg:<\/strong>&nbsp;Het bovenstaande commando wordt gebruikt om nieuwe gegevens toe te voegen aan de tabel &#8220;Jurusan&#8221;. De kolom &#8220;KodeJur&#8221; wordt gevuld met de waarde 12, terwijl de kolom &#8220;NamaJur&#8221; wordt gevuld met Teknik Informatika.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. UPDATE-commando<\/strong><\/h3>\n\n\n\n<p><strong>UPDATE<\/strong>&nbsp;is een commando dat wordt gebruikt om bestaande gegevens in de database te wijzigen, bij te werken of te vervangen.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Syntax:<\/strong><\/p>\n\n\n\n<p>sql<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">UPDATE tabelnaam SET kolomnaam = nieuwe_kolomwaarde WHERE voorwaarde;<\/pre>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Voorbeeld:<\/strong><\/p>\n\n\n\n<p>sql<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">UPDATE Mahasiswa SET Nama='Wilan' WHERE No='1123';<\/pre>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Uitleg:<\/strong>&nbsp;Dit commando betekent dat we gegevens in de tabel &#8220;Mahasiswa&#8221; wijzigen, specifiek de inhoud van de kolom &#8220;Nama&#8221; vervangen door Wilan, alleen voor de rij die een &#8220;No&#8221;-waarde gelijk aan 1123 heeft.<br><strong>Belangrijke opmerking:<\/strong>&nbsp;Als de WHERE-voorwaarde niet wordt toegevoegd, zal het systeem&nbsp;<strong>alle<\/strong>&nbsp;gegevens in die kolom voor alle rijen wijzigen.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. DELETE-commando<\/strong><\/h3>\n\n\n\n<p><strong>DELETE<\/strong>&nbsp;is een commando dat wordt gebruikt om gegevensrijen uit de database te verwijderen.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Syntax:<\/strong><\/p>\n\n\n\n<p>sql<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">DELETE FROM tabelnaam WHERE voorwaarde;<\/pre>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Voorbeeld:<\/strong><\/p>\n\n\n\n<p>sql<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">DELETE FROM Mahasiswa WHERE No='1123';<\/pre>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Uitleg:<\/strong>&nbsp;Dit commando is nuttig voor het verwijderen van gegevens uit de tabel &#8220;Mahasiswa&#8221; die een record met &#8220;No&#8221; (of studentnummer) 1123 hebben.<br><strong>Belangrijke opmerking:<\/strong>&nbsp;Het verwijderen van gegevens met DELETE is sterk afhankelijk van de gebruikte WHERE-voorwaarde. U moet altijd controleren of het DELETE-commando met de juiste voorwaarde is gedefinieerd, zodat er geen belangrijke gegevens per ongeluk worden verwijderd.<\/p>\n<\/blockquote>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Definitie en Soorten DML Data Manipulation Language (DML)&nbsp;is een SQL-querymethode die kan worden gebruikt nadat de databasestructuur is aangemaakt met DDL (Data Definition Language). Simpel gezegd is DML een verzameling querycommando&#8217;s die dienen om gegevens in een database te manipuleren. De belangrijkste commando&#8217;s in DML omvatten&nbsp;INSERT&nbsp;voor het toevoegen van gegevens,&nbsp;UPDATE&nbsp;voor het wijzigen of vervangen van gegevens en&nbsp;DELETE&nbsp;voor het verwijderen van gegevens. DML zelf wordt onderverdeeld in twee hoofdtypen: Gebruik van de Commando&#8217;s INSERT, UPDATE en DELETE in SQL Hieronder volgt een gedetailleerdere uitleg van de drie basis-DML-commando&#8217;s samen met voorbeelden van het gebruik ervan: 1. INSERT-commando INSERT&nbsp;is een commando dat wordt gebruikt om nieuwe gegevensrijen toe te voegen of in te voegen in een tabel in de database. Syntax: sql INSERT INTO tabelnaam (kolomgegevens) VALUES (gegevenswaarden); Voorbeeld: sql INSERT INTO Jurusan (KodeJur, NamaJur) VALUES (&#8217;12&#8217;, &#8216;Teknik Informatika&#8217;); Uitleg:&nbsp;Het bovenstaande commando wordt gebruikt om nieuwe gegevens toe te voegen aan de tabel &#8220;Jurusan&#8221;. De kolom &#8220;KodeJur&#8221; wordt gevuld met de waarde 12, terwijl de kolom &#8220;NamaJur&#8221; wordt gevuld met Teknik Informatika. 2. UPDATE-commando UPDATE&nbsp;is een commando dat wordt gebruikt om bestaande gegevens in de database te wijzigen, bij te werken of te vervangen. Syntax: sql UPDATE tabelnaam SET kolomnaam = nieuwe_kolomwaarde &hellip;<\/p>\n","protected":false},"author":1,"featured_media":2875,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[94],"tags":[],"class_list":["post-2889","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-programmeren"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>DML in SQL: Definitie, Soorten en Basiscommando&#039;s<\/title>\n<meta name=\"description\" content=\"Het concept van DML in SQL begrijpen. 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