{"id":4864,"date":"2022-09-27T09:31:25","date_gmt":"2022-09-27T09:31:25","guid":{"rendered":"https:\/\/www.wikitechy.com\/interview-questions\/?p=4864"},"modified":"2022-09-27T10:08:16","modified_gmt":"2022-09-27T10:08:16","slug":"char-vs-varchar-in-sql","status":"publish","type":"post","link":"https:\/\/www.wikitechy.com\/interview-questions\/sql\/char-vs-varchar-in-sql\/","title":{"rendered":"Char vs Varchar in SQL"},"content":{"rendered":"<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-4867 aligncenter\" src=\"https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/09\/char-vs-varchar-in-sql.jpg\" alt=\"\" width=\"608\" height=\"425\" srcset=\"https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/09\/char-vs-varchar-in-sql.jpg 608w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/09\/char-vs-varchar-in-sql-300x210.jpg 300w, https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/09\/char-vs-varchar-in-sql-390x273.jpg 390w\" sizes=\"(max-width: 608px) 100vw, 608px\" \/><\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"172\">\n<h3 id=\"char\" style=\"text-align: center;\"><strong>Char<\/strong><\/h3>\n<\/td>\n<td width=\"181\">\n<h3 id=\"varchar\" style=\"text-align: center;\"><strong>VarChar<\/strong><\/h3>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"172\">Char data type is used for storing single character values<\/td>\n<td width=\"181\">It is a SQL Code that helps in storing variable character<\/td>\n<\/tr>\n<tr>\n<td width=\"172\">Used to store characters string of fixed length specified<\/td>\n<td width=\"181\">If a length of a string is less than the set or fixed length then it will store as it is without including any extra blank spaces.<\/p>\n<p>\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"172\">Size is fixed. Cannot be changed during runtime<\/td>\n<td width=\"181\">Storage size of VARCHAR datatype is equal to the actual length of the entered string in bytes.<\/p>\n<p>\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"172\">Can Store only characters<\/td>\n<td width=\"181\">We should use this datatype when we expect the data values in a column are of variable length.<\/p>\n<p>\u00a0<\/td>\n<\/tr>\n<tr>\n<td width=\"172\">Memory is allocation is <strong>Static<\/strong><\/td>\n<td width=\"181\">Memory is allocated <strong>Dynamically<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"172\">Per Character contains 1 byte<\/td>\n<td width=\"181\">For Storing it uses 1 byte per character Plus 1 or 2 extra bytes for stroing varying length.<\/td>\n<\/tr>\n<tr>\n<td width=\"172\">Since the size of the char is fixed and cannot be changed, there will be a memory wastage.<\/p>\n<p>\u00a0<\/td>\n<td width=\"181\">To store a character string value of set length then varchar data type is used<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Char VarChar Char data type is used for storing single character values It is a SQL Code that helps in storing variable character Used to store characters string of fixed length specified If a length of a string is less than the set or fixed length then it will store as it is without including [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6547],"tags":[18630,18628,18626,18638,18631,18641,18640,18635,18634,18633,18629,18627,18637,18639,18642,18636,18632],"class_list":["post-4864","post","type-post","status-publish","format-standard","hentry","category-sql","tag-and-varchar2-difference-between-char-and-varchar-and-varchar2","tag-char-vs-varchar-in-sql","tag-difference-between-char","tag-difference-between-char-and-varchar-class-10","tag-difference-between-char-and-varchar2-in-sql","tag-difference-between-varchar-and-varchar2-and-nvarchar","tag-difference-between-varchar-and-varchar2-in-mysql","tag-difference-between-varchar-and-varchar2-sql","tag-how-are-varchar-and-varchar2-different","tag-shoud-i-use-char-or-varchar2","tag-varchar","tag-varchar-and-varchar2-in-sql","tag-varchar-varchar2-and-nvarchar-in-sql","tag-varchar2-data-type","tag-varchar2-in-sql","tag-varchar210-means","tag-what-is-the-major-difference-between-varchar2-and-char"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - 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