{"id":1032,"date":"2010-09-11T00:49:24","date_gmt":"2010-09-10T19:19:24","guid":{"rendered":"http:\/\/JitendraZaa.com\/blog\/?p=1032"},"modified":"2010-09-11T00:49:24","modified_gmt":"2010-09-10T19:19:24","slug":"difference-in-master-detail-relationship-and-look-up-relationship-salesforce-interview-question","status":"publish","type":"post","link":"https:\/\/www.jitendrazaa.com\/blog\/others\/tips\/difference-in-master-detail-relationship-and-look-up-relationship-salesforce-interview-question\/","title":{"rendered":"Difference in Master-Detail relationship and look up relationship – Salesforce Interview question"},"content":{"rendered":"

One important question may asked in Salesforce interview is that what is difference in Master – Detail Relationship and Lookup relationship Fields.<\/strong><\/p>\n

\"Master<\/a><\/strong><\/p>\n

Master – Detail Relationship :<\/strong><\/p>\n

    \n
  1. We cannot create master – detail relationship type fields directly if records already exists. <\/strong>Instead we have to first create Look up fields then fill all the records with that lookup filed. After that we can convert the lookup fields to master – detail relationship.<\/li>\n
  2. If we delete master records then detail (Child) records are deleted.<\/li>\n
  3. It creates the parent(master) child(Detail) relationship between objects.<\/li>\n<\/ol>\n

    Look up relationship :<\/strong><\/p>\n

      \n
    1. Look up relationship creates relations between two objects.<\/strong><\/li>\n
    2. If we delete any object then other object is not deleted.<\/li>\n<\/ol>\n

      NOTE : <\/strong>The field conversion can only done between master detail relationship and look up relationship, both controls type can interchanged by them only.<\/p>\n","protected":false},"excerpt":{"rendered":"

      Difference in Master-Detail relationship and look up relationship – Salesforce Interview question<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"jz_research_post":"","_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[17],"tags":[331],"class_list":["post-1032","post","type-post","status-publish","format-standard","hentry","category-tips","tag-salesforce"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":2681,"url":"https:\/\/www.jitendrazaa.com\/blog\/salesforce\/salesforce-interview-questions-part-5\/","url_meta":{"origin":1032,"position":0},"title":"Salesforce Interview Questions – Part 5","author":"Jitendra","date":"January 24, 2012","format":false,"excerpt":"Basic concepts and Interview Questions of salesforce, Visualforce, Apex and SOQL","rel":"","context":"In "Apex"","block_context":{"text":"Apex","link":"https:\/\/www.jitendrazaa.com\/blog\/category\/salesforce\/apex\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":2473,"url":"https:\/\/www.jitendrazaa.com\/blog\/salesforce\/deep-drive-in-junction-object-create-many-to-many-relationship-in-salesforce\/","url_meta":{"origin":1032,"position":1},"title":"Deep dive into Junction object – Create many to many relationship in Salesforce","author":"Jitendra","date":"October 20, 2011","format":false,"excerpt":"Article to show step by step process of creating junction object for Many to Many relationship in salesforce and impact of deleting one master record on others","rel":"","context":"In "Salesforce"","block_context":{"text":"Salesforce","link":"https:\/\/www.jitendrazaa.com\/blog\/category\/salesforce\/"},"img":{"alt_text":"Creating Custom object in salesforce","src":"https:\/\/i0.wp.com\/jitendrazaa.com\/blog\/wp-content\/uploads\/2011\/10\/Creating-Custom-object-in-salesforce.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":3218,"url":"https:\/\/www.jitendrazaa.com\/blog\/salesforce\/salesforce-interview-question-part-15\/","url_meta":{"origin":1032,"position":2},"title":"Salesforce Interview Question \u2013 Part 15","author":"Jitendra","date":"May 24, 2013","format":false,"excerpt":"141 : User Wants to set the starting day in Calendar as \"Monday\" instead of \"Sunday\". 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