{"id":1132,"date":"2021-07-20T09:17:30","date_gmt":"2021-07-20T09:17:30","guid":{"rendered":"https:\/\/www.wikitechy.com\/interview-questions\/?p=1132"},"modified":"2021-09-08T11:56:58","modified_gmt":"2021-09-08T11:56:58","slug":"what-is-the-difference-between-a-join-and-subquery","status":"publish","type":"post","link":"https:\/\/www.wikitechy.com\/interview-questions\/oracle\/what-is-the-difference-between-a-join-and-subquery\/","title":{"rendered":"What is the Difference between a Join and Subquery ?"},"content":{"rendered":"
\n
\n

Join<\/span><\/h2>\n<\/div>\n<\/div>\n
\n
\n
    \n
  • Joins are SELECT commands that retrieve data from two or more tables.<\/li>\n
  • The WHERE clause usually gives the join conditions that determine how data is selected from each table in the join to fill in the specified columns in the select list.<\/li>\n
  • Joins are used to return rows.<\/li>\n
  • Join is an integral part of the select statement.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n
    \n
    \n

    Subquery<\/h2>\n<\/div>\n<\/div>\n
    \n
    \n
      \n
    • Subquery is a SELECT statement within another SQL Statement.<\/li>\n
    • Subqueries structure a complex query into isolated parts.<\/li>\n
    • Subqueries allow you to use the results of another query in the outer query.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

      Answer : Joins are SELECT commands that retrieve data from two or more tables….<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8028],"tags":[195,201,491,360,5937,368,203,199,214,209,8035,205,8041,8038,8037,8048,222,484,362,8040,8034,8036,196,212,213,8046,8029,8049,8031,207,366,361,204,8043,8039,8044,8042,7799,367,206,8047,8045,8033,975,200,197,280,364,8050,8030,8032,15838],"class_list":["post-1132","post","type-post","status-publish","format-standard","hentry","category-oracle","tag-accenture-interview-questions-and-answers","tag-allstate-solutions-pvt-ltd-interview-questions-and-answers","tag-applied-materials-interview-questions-and-answers","tag-atos-interview-questions-and-answers","tag-aveva-software-interview-questions-and-answers","tag-bmc-software-interview-questions-and-answers","tag-capgemini-interview-questions-and-answers","tag-casting-networks-india-pvt-limited-interview-questions-and-answers","tag-cgi-group-inc-interview-questions-and-answers","tag-collabera-technologies-interview-questions-and-answers","tag-comparing-and-contrasting-subqueries-and-joins-difference-between-subqueries-and-joins","tag-dell-international-services-india-pvt-ltd-interview-questions-and-answers","tag-difference-between-joins-and-subqueries-in-oracle","tag-difference-between-nested-query-and-subquery","tag-difference-between-subquery-and-join-in-oraclejoins-and-subqueries-in-oraclejoin-vs-subquery-performance-sql-server","tag-flattening-a-subquery-into-a-normal-join","tag-flipkart-interview-questions-and-answers","tag-genpact-interview-questions-and-answers","tag-hcl-technologies-interview-questions-and-answers","tag-how-to-join-a-table-with-a-subquery","tag-how-to-join-two-subqueries-in-sql","tag-how-to-join-two-subqueries-in-sql-and-sub-queries","tag-ibm-interview-questions-and-answers","tag-indecomm-global-services-interview-questions-and-answers","tag-infosys-technologies-interview-questions-and-answers","tag-inner-join-as-a-sub-query","tag-join-or-subquery-which-is-faster","tag-joins-and-subqueries","tag-joins-and-subqueries-in-sql","tag-mphasis-interview-questions-and-answers","tag-netapp-interview-questions-and-answers","tag-opentext-technologies-interview-questions-and-answers","tag-oracle-corporation-interview-questions-and-answers","tag-oracle-join","tag-oracle-left-outer-join-with-subquery","tag-oracle-multiple-subqueries","tag-oracle-subquery","tag-prokarma-sof-interview-questions-and-answers","tag-rbs-india-development-centre-pvt-ltd-interview-questions-and-answers","tag-sap-labs-india-pvt-ltd-interview-questions-and-answers","tag-sql-join-subquery","tag-subquery-types-in-oracle","tag-subquery-with-join-in-sql-server-examples","tag-tata-consultancy-service-interview-questions-and-answers","tag-tech-mahindra-interview-questions-and-answers","tag-unitedhealth-group-interview-questions-and-answers","tag-virtusa-consulting-services-pvt-ltd-interview-questions-and-answers","tag-wells-fargo-interview-questions-and-answers","tag-what-is-the-difference-between-a-join-and-subquery","tag-when-to-use-subquery-and-when-to-use-joinsjoin-vs-subquery-performance-oracle","tag-which-is-faster-subquery-or-join-in-sql-server","tag-zeta-interactive-interview-questions-and-answers"],"yoast_head":"\nWhat 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