如何更新JSONB数组Postgresql数组对象中的多个值

我在下面有一个JSONB数组

[
  {"name":"test","age":"21","phone":"6589","town":"54"},
  {"name":"test12","age":"67","phone":"6546","town":"54"}
]

现在我想更新

城镇

，

电话

，

年龄

，如果

姓名

是测试。

---

如何更新JSONB数组中的多个值？

下面的查询将为您提供包含

test

word的结果。找到这些后，可以更新其他列中的任何值

---

您可以通过索引每个单独的元素来动态更新它们：

对于年龄：

WITH s AS
(
 SELECT ('{'||idx-1||',age}')::text[] AS path
   FROM tab 
  CROSS JOIN jsonb_array_elements(jsdata) 
   WITH ORDINALITY arr(j,idx)
  WHERE j->>'name'='test' 
)
UPDATE tab
   SET jsdata = jsonb_set(jsdata,s.path,'"15"',false)
  FROM s

WITH s AS
(
 SELECT ('{'||idx-1||',town}')::text[] AS path
   FROM tab 
  CROSS JOIN jsonb_array_elements(jsdata) 
   WITH ORDINALITY arr(j,idx)
  WHERE j->>'name'='test' 
)
UPDATE tab
   SET jsdata = jsonb_set(jsdata,s.path,'"55"',false)
  FROM s

WITH s AS
(
 SELECT ('{'||idx-1||',phone}')::text[] AS path
   FROM tab 
  CROSS JOIN jsonb_array_elements(jsdata) 
   WITH ORDINALITY arr(j,idx)
  WHERE j->>'name'='test' 
)
UPDATE tab
   SET jsdata = jsonb_set(jsdata,s.path,'"1111"',false)
  FROM s

WITH s AS
(
 SELECT ('{'||idx-1||',phone}')::text[] AS path_phone,
        ('{'||idx-1||',town}')::text[] AS path_town,
        ('{'||idx-1||',age}')::text[] AS path_age
   FROM tab 
  CROSS JOIN jsonb_array_elements(jsdata) 
   WITH ORDINALITY arr(j,idx)
  WHERE j->>'name'='test' 
)
UPDATE tab
   SET jsdata = jsonb_set(jsonb_set(jsonb_set(jsdata,
                                              s.path_phone,
                                              '"1111"',
                                              false),
                                    path_town,
                                    '"55"',
                                    false),
                          s.path_age,
                          '"20"',
                          false)
      FROM s

对于城镇：

WITH s AS
(
 SELECT ('{'||idx-1||',age}')::text[] AS path
   FROM tab 
  CROSS JOIN jsonb_array_elements(jsdata) 
   WITH ORDINALITY arr(j,idx)
  WHERE j->>'name'='test' 
)
UPDATE tab
   SET jsdata = jsonb_set(jsdata,s.path,'"15"',false)
  FROM s

WITH s AS
(
 SELECT ('{'||idx-1||',town}')::text[] AS path
   FROM tab 
  CROSS JOIN jsonb_array_elements(jsdata) 
   WITH ORDINALITY arr(j,idx)
  WHERE j->>'name'='test' 
)
UPDATE tab
   SET jsdata = jsonb_set(jsdata,s.path,'"55"',false)
  FROM s

WITH s AS
(
 SELECT ('{'||idx-1||',phone}')::text[] AS path
   FROM tab 
  CROSS JOIN jsonb_array_elements(jsdata) 
   WITH ORDINALITY arr(j,idx)
  WHERE j->>'name'='test' 
)
UPDATE tab
   SET jsdata = jsonb_set(jsdata,s.path,'"1111"',false)
  FROM s

WITH s AS
(
 SELECT ('{'||idx-1||',phone}')::text[] AS path_phone,
        ('{'||idx-1||',town}')::text[] AS path_town,
        ('{'||idx-1||',age}')::text[] AS path_age
   FROM tab 
  CROSS JOIN jsonb_array_elements(jsdata) 
   WITH ORDINALITY arr(j,idx)
  WHERE j->>'name'='test' 
)
UPDATE tab
   SET jsdata = jsonb_set(jsonb_set(jsonb_set(jsdata,
                                              s.path_phone,
                                              '"1111"',
                                              false),
                                    path_town,
                                    '"55"',
                                    false),
                          s.path_age,
                          '"20"',
                          false)
      FROM s

对于电话：

WITH s AS
(
 SELECT ('{'||idx-1||',age}')::text[] AS path
   FROM tab 
  CROSS JOIN jsonb_array_elements(jsdata) 
   WITH ORDINALITY arr(j,idx)
  WHERE j->>'name'='test' 
)
UPDATE tab
   SET jsdata = jsonb_set(jsdata,s.path,'"15"',false)
  FROM s

WITH s AS
(
 SELECT ('{'||idx-1||',town}')::text[] AS path
   FROM tab 
  CROSS JOIN jsonb_array_elements(jsdata) 
   WITH ORDINALITY arr(j,idx)
  WHERE j->>'name'='test' 
)
UPDATE tab
   SET jsdata = jsonb_set(jsdata,s.path,'"55"',false)
  FROM s

WITH s AS
(
 SELECT ('{'||idx-1||',phone}')::text[] AS path
   FROM tab 
  CROSS JOIN jsonb_array_elements(jsdata) 
   WITH ORDINALITY arr(j,idx)
  WHERE j->>'name'='test' 
)
UPDATE tab
   SET jsdata = jsonb_set(jsdata,s.path,'"1111"',false)
  FROM s

WITH s AS
(
 SELECT ('{'||idx-1||',phone}')::text[] AS path_phone,
        ('{'||idx-1||',town}')::text[] AS path_town,
        ('{'||idx-1||',age}')::text[] AS path_age
   FROM tab 
  CROSS JOIN jsonb_array_elements(jsdata) 
   WITH ORDINALITY arr(j,idx)
  WHERE j->>'name'='test' 
)
UPDATE tab
   SET jsdata = jsonb_set(jsonb_set(jsonb_set(jsdata,
                                              s.path_phone,
                                              '"1111"',
                                              false),
                                    path_town,
                                    '"55"',
                                    false),
                          s.path_age,
                          '"20"',
                          false)
      FROM s

或一次直接：

WITH s AS
(
 SELECT ('{'||idx-1||',age}')::text[] AS path
   FROM tab 
  CROSS JOIN jsonb_array_elements(jsdata) 
   WITH ORDINALITY arr(j,idx)
  WHERE j->>'name'='test' 
)
UPDATE tab
   SET jsdata = jsonb_set(jsdata,s.path,'"15"',false)
  FROM s

WITH s AS
(
 SELECT ('{'||idx-1||',town}')::text[] AS path
   FROM tab 
  CROSS JOIN jsonb_array_elements(jsdata) 
   WITH ORDINALITY arr(j,idx)
  WHERE j->>'name'='test' 
)
UPDATE tab
   SET jsdata = jsonb_set(jsdata,s.path,'"55"',false)
  FROM s

WITH s AS
(
 SELECT ('{'||idx-1||',phone}')::text[] AS path
   FROM tab 
  CROSS JOIN jsonb_array_elements(jsdata) 
   WITH ORDINALITY arr(j,idx)
  WHERE j->>'name'='test' 
)
UPDATE tab
   SET jsdata = jsonb_set(jsdata,s.path,'"1111"',false)
  FROM s

WITH s AS
(
 SELECT ('{'||idx-1||',phone}')::text[] AS path_phone,
        ('{'||idx-1||',town}')::text[] AS path_town,
        ('{'||idx-1||',age}')::text[] AS path_age
   FROM tab 
  CROSS JOIN jsonb_array_elements(jsdata) 
   WITH ORDINALITY arr(j,idx)
  WHERE j->>'name'='test' 
)
UPDATE tab
   SET jsdata = jsonb_set(jsonb_set(jsonb_set(jsdata,
                                              s.path_phone,
                                              '"1111"',
                                              false),
                                    path_town,
                                    '"55"',
                                    false),
                          s.path_age,
                          '"20"',
                          false)
      FROM s

---

此查询较长，但应明确扩展原始列以进行替换：

with injson as (
  select '[
  {"name":"test","age":"21","phone":"6589","town":"54"},
  {"name":"test12","age":"67","phone":"6546","town":"54"}
]'::jsonb as jarray
), substitution as (
  select '{"name": "test", "age": "22", "phone": "6590", "town": "55"}'::jsonb as jnew
), expand as (
  select jsonb_array_elements(jarray) as jold
    from injson
), cond_update as (
  select coalesce(s.jnew, e.jold) as element
    from expand e
         left join substitution s
                on s.jnew->>'name' = e.jold->>'name'
)
select jsonb_agg(element) as result
  from cond_update;
                                                             result                                                             
--------------------------------------------------------------------------------------------------------------------------------
 [{"age": "22", "name": "test", "town": "55", "phone": "6590"}, {"age": "67", "name": "test12", "town": "54", "phone": "6546"}]
(1 row)

根据表的描述，它应该如下所示：

with substitution as (
  select '{"name": "test", "age": "22", "phone": "6590", "town": "55"}'::jsonb as jnew
), expand as (
  select id, jsonb_array_elements("caloriesConsumption") as jold
    from "calorieTracker"
   where id = 1
), cond_update as (
  select id, coalesce(s.jnew, e.jold) as element
    from expand e
         left join substitution s
                on s.jnew->>'name' = e.jold->>'name'
)
update "calorieTracker" 
   set "caloriesConsumption" = cu.element
  from cond_update
 where cond_update.id = "calorieTracker".id;

---

使用正确规范化的数据模型，这将非常容易。您确定要这样存储它吗？稍后您可能会遇到问题。尽管有点老了，我还是建议你阅读这篇关于为什么这可能是个坏主意的帖子。谢谢你的快速回复。我可以使用jsonb_集在一个查询中更新它吗？我在这里找到了它，但这里我们只能更新菜单名，但在我的情况下，我想在对象中添加一个或多个值。欢迎@AvinashJagtap，我还添加了一次执行的案例。非常感谢。我要试试这个。节省了我的时间。我在JSON中添加了另一个试图更新的对象。我们可以用现有对象替换整个对象而不是更改吗？@AvinashJagtap如果您想看到

更新

，那么将您的表信息添加到您的问题中。[{“name”：“test”，“age”：“21”，“phone”：“6589”，“town”：“54”}，{“name”：“test12”，“age”：“67”，“phone”：“6546”，“town”：“54”}，@AvinashJagtap这不是表。这只是一个JSON数组。您的数据库表名是什么，表中有哪些列？表名：CarriorTracker和两列id和CarriorConsumption。这是我的表infor在te表中，我有两列id是int，卡路里消耗是jsob数据类型。我想更新id 1，如果c_日期是外汇：“08/08/2020”，我想更新该对象。我希望我已经提供了exat信息。@AvinashJagtap我在回答中添加了一个示例更新语句。