{"id":145217,"date":"2025-06-04T12:15:44","date_gmt":"2025-06-04T06:45:44","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=145217"},"modified":"2025-06-04T12:15:44","modified_gmt":"2025-06-04T06:45:44","slug":"how-to-use-join-without-a-common-column-name-in-pandas","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/how-to-use-join-without-a-common-column-name-in-pandas\/","title":{"rendered":"How to Use Join without a Common Column Name in Pandas"},"content":{"rendered":"<h3>Program 1<\/h3>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\"># Advance Data Analysis \r\n#Join in DataFrame\r\nimport pandas as pd\r\ndf1=pd.DataFrame({'empname':['rahul','vijay','dipesh'],'Age':[45,43,54]})\r\ndf2=pd.DataFrame({'citizen':['rahul','vijay','amit'],'Salary in lakhs ':[23,33,28]})\r\n\r\n\r\n# Outer Join\r\ndf3=pd.merge(df2,df1,left_on='citizen',right_on='empname',how='inner')\r\nprint(df1)\r\nprint(\"----------------------------------------\")\r\nprint(df2)\r\nprint(\"-------------------------------------------\")\r\nprint(df3)\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n# Outer Join\r\ndf3=pd.merge(df1,df2,left_on='empname',right_on='citizen',how='outer')\r\nprint(df1)\r\nprint(\"----------------------------------------\")\r\nprint(df2)\r\nprint(\"-------------------------------------------\")\r\nprint(df3)\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n# # Right Join\r\n# df3=pd.merge(df1,df2,left_on='empname',right_on='citizen',how='right')\r\n# print(df1)\r\n# print(\"----------------------------------------\")\r\n# print(df2)\r\n# print(\"-------------------------------------------\")\r\n# print(df3)\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n# # left Join\r\n# df3=pd.merge(df1,df2,left_on='empname',right_on='citizen',how='left')\r\n# print(df1)\r\n# print(\"----------------------------------------\")\r\n# print(df2)\r\n# print(\"-------------------------------------------\")\r\n# print(df3)\r\n\r\n\r\n# # Inner Join\r\n# df3=pd.merge(df1,df2,left_on='empname',right_on='citizen',how='inner')\r\n# print(df1)\r\n# print(\"----------------------------------------\")\r\n# print(df2)\r\n# print(\"-------------------------------------------\")\r\n# print(df3)\r\n<\/pre>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Program 1 # Advance Data Analysis #Join in DataFrame import pandas as pd df1=pd.DataFrame({&#8217;empname&#8217;:[&#8216;rahul&#8217;,&#8217;vijay&#8217;,&#8217;dipesh&#8217;],&#8217;Age&#8217;:[45,43,54]}) df2=pd.DataFrame({&#8216;citizen&#8217;:[&#8216;rahul&#8217;,&#8217;vijay&#8217;,&#8217;amit&#8217;],&#8217;Salary in lakhs &#8216;:[23,33,28]}) # Outer Join df3=pd.merge(df2,df1,left_on=&#8217;citizen&#8217;,right_on=&#8217;empname&#8217;,how=&#8217;inner&#8217;) print(df1) print(&#8220;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-&#8220;) print(df2) print(&#8220;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-&#8220;) print(df3) # Outer Join df3=pd.merge(df1,df2,left_on=&#8217;empname&#8217;,right_on=&#8217;citizen&#8217;,how=&#8217;outer&#8217;) print(df1) print(&#8220;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-&#8220;) print(df2)&#46;&#46;&#46;<\/p>\n","protected":false},"author":581,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19475],"tags":[34316,9393,30038,34264,34318,9399,34317],"class_list":["post-145217","post","type-post","status-publish","format-standard","hentry","category-pandas","tag-how-use-join-without-a-common-column-name-in-pandas","tag-pandas","tag-pandas-practical","tag-pandas-program","tag-pandas-program-on-how-to-use-join-without-a-common-column","tag-pandas-tutorial","tag-use-join-without-a-common-column-name-in-pandas"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Use Join without a Common Column Name in Pandas - DataFlair<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/data-flair.training\/blogs\/how-to-use-join-without-a-common-column-name-in-pandas\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Use Join without a Common Column Name in Pandas - DataFlair\" \/>\n<meta property=\"og:description\" content=\"Program 1 # Advance Data Analysis #Join in DataFrame import pandas as pd df1=pd.DataFrame({&#039;empname&#039;:[&#039;rahul&#039;,&#039;vijay&#039;,&#039;dipesh&#039;],&#039;Age&#039;:[45,43,54]}) df2=pd.DataFrame({&#039;citizen&#039;:[&#039;rahul&#039;,&#039;vijay&#039;,&#039;amit&#039;],&#039;Salary in lakhs &#039;:[23,33,28]}) # Outer Join df3=pd.merge(df2,df1,left_on=&#039;citizen&#039;,right_on=&#039;empname&#039;,how=&#039;inner&#039;) print(df1) print(&quot;----------------------------------------&quot;) print(df2) print(&quot;-------------------------------------------&quot;) print(df3) # Outer Join df3=pd.merge(df1,df2,left_on=&#039;empname&#039;,right_on=&#039;citizen&#039;,how=&#039;outer&#039;) print(df1) print(&quot;----------------------------------------&quot;) print(df2)&#046;&#046;&#046;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/data-flair.training\/blogs\/how-to-use-join-without-a-common-column-name-in-pandas\/\" \/>\n<meta property=\"og:site_name\" content=\"DataFlair\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/DataFlairWS\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-04T06:45:44+00:00\" \/>\n<meta name=\"author\" content=\"DataFlair Team\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:site\" content=\"@DataFlairWS\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"DataFlair Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"How to Use Join without a Common Column Name in Pandas - DataFlair","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/data-flair.training\/blogs\/how-to-use-join-without-a-common-column-name-in-pandas\/","og_locale":"en_US","og_type":"article","og_title":"How to Use Join without a Common Column Name in Pandas - DataFlair","og_description":"Program 1 # Advance Data Analysis #Join in DataFrame import pandas as pd df1=pd.DataFrame({'empname':['rahul','vijay','dipesh'],'Age':[45,43,54]}) df2=pd.DataFrame({'citizen':['rahul','vijay','amit'],'Salary in lakhs ':[23,33,28]}) # Outer Join df3=pd.merge(df2,df1,left_on='citizen',right_on='empname',how='inner') print(df1) print(\"----------------------------------------\") print(df2) print(\"-------------------------------------------\") print(df3) # Outer Join df3=pd.merge(df1,df2,left_on='empname',right_on='citizen',how='outer') print(df1) print(\"----------------------------------------\") print(df2)&#46;&#46;&#46;","og_url":"https:\/\/data-flair.training\/blogs\/how-to-use-join-without-a-common-column-name-in-pandas\/","og_site_name":"DataFlair","article_publisher":"https:\/\/www.facebook.com\/DataFlairWS\/","article_published_time":"2025-06-04T06:45:44+00:00","author":"DataFlair Team","twitter_card":"summary_large_image","twitter_creator":"@DataFlairWS","twitter_site":"@DataFlairWS","twitter_misc":{"Written by":"DataFlair Team","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/data-flair.training\/blogs\/how-to-use-join-without-a-common-column-name-in-pandas\/#article","isPartOf":{"@id":"https:\/\/data-flair.training\/blogs\/how-to-use-join-without-a-common-column-name-in-pandas\/"},"author":{"name":"DataFlair Team","@id":"https:\/\/data-flair.training\/blogs\/#\/schema\/person\/c187795dc82ab948373cca526df7c445"},"headline":"How to Use Join without a Common Column Name in Pandas","datePublished":"2025-06-04T06:45:44+00:00","mainEntityOfPage":{"@id":"https:\/\/data-flair.training\/blogs\/how-to-use-join-without-a-common-column-name-in-pandas\/"},"wordCount":13,"commentCount":0,"publisher":{"@id":"https:\/\/data-flair.training\/blogs\/#organization"},"keywords":["how use join without a common column name in pandas","Pandas","pandas practical","pandas program","pandas program on how to use join without a common column","pandas tutorial","use join without a common column name in pandas"],"articleSection":["Pandas Tutorials"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/data-flair.training\/blogs\/how-to-use-join-without-a-common-column-name-in-pandas\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/data-flair.training\/blogs\/how-to-use-join-without-a-common-column-name-in-pandas\/","url":"https:\/\/data-flair.training\/blogs\/how-to-use-join-without-a-common-column-name-in-pandas\/","name":"How to Use Join without a Common Column Name in Pandas - 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