{"id":27018,"date":"2024-03-16T07:43:58","date_gmt":"2024-03-16T07:43:58","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-pass-parameters-in-mybatis-subquery\/"},"modified":"2024-03-22T10:00:17","modified_gmt":"2024-03-22T10:00:17","slug":"how-to-pass-parameters-in-mybatis-subquery","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-pass-parameters-in-mybatis-subquery\/","title":{"rendered":"How to pass parameters in MyBatis subquery?"},"content":{"rendered":"

There are two ways to pass parameters to subqueries in MyBatis.<\/p>\n

    \n
  1. I need to finish my homework before I can go out with my friends.<\/li>\n
  2. I need to go grocery shopping.<\/li>\n
  3. type of parameter<\/li>\n<\/ol>\n
    <select<\/span> id<\/span>=\"getParentsByChildId\"<\/span> parameterType<\/span>=\"java.lang.Integer\"<\/span> resultType<\/span>=\"Parent\"<\/span>><\/span>\r\n  SELECT * FROM parent WHERE id IN (\r\n    SELECT parent_id FROM child WHERE id = #{childId}\r\n  )\r\n<\/select<\/span>><\/span>\r\n<\/code><\/pre>\n
    Pass the childId parameter when calling the subquery.<\/p>\n
    List<Parent> parents = sqlSession.selectList(\"getParentsByChildId\"<\/span>, childId);\r\n<\/code><\/pre>\n
      \n
    1. for each<\/li>\n
    2. for each<\/li>\n<\/ol>\n
      <select<\/span> id<\/span>=\"getParentsByChildIds\"<\/span> parameterType<\/span>=\"java.util.List\"<\/span> resultType<\/span>=\"Parent\"<\/span>><\/span>\r\n  SELECT * FROM parent WHERE id IN (\r\n    <foreach<\/span> collection<\/span>=\"childIds\"<\/span> item<\/span>=\"childId\"<\/span> separator<\/span>=\",\"<\/span>><\/span>\r\n      SELECT parent_id FROM child WHERE id = #{childId}\r\n    <\/foreach<\/span>><\/span>\r\n  )\r\n<\/select<\/span>><\/span>\r\n<\/code><\/pre>\n
      Pass the childIds parameter when calling the subquery.<\/p>\n
      List<Integer> childIds = new<\/span> ArrayList<\/span><>();\r\nchildIds.add(1<\/span>);\r\nchildIds.add(2<\/span>);\r\nList<Parent> parents = sqlSession.selectList(\"getParentsByChildIds\"<\/span>, childIds);\r\n<\/code><\/pre>\n
      This allows passing the values in childIds to the subquery and returning a list of parent records that meet the criteria.<\/p>\n","protected":false},"excerpt":{"rendered":"
      There are two ways to pass parameters to subqueries in MyBatis. I need to finish my homework before I can go out with my friends. I need to go grocery shopping. type of parameter <select id=”getParentsByChildId” parameterType=”java.lang.Integer” resultType=”Parent”> SELECT * FROM parent WHERE id IN ( SELECT parent_id FROM child WHERE id = #{childId} ) […]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-27018","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nHow to pass parameters in MyBatis subquery? - Blog - Silicon Cloud<\/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:\/\/www.silicloud.com\/blog\/how-to-pass-parameters-in-mybatis-subquery\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to pass parameters in MyBatis subquery?\" \/>\n<meta property=\"og:description\" content=\"There are two ways to pass parameters to subqueries in MyBatis. 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