從 JSON 轉換 Array 中的列

Question

我有一張包含以下數據的表格。

ID	描述	第 1 列	第 2 列	第 3 列
1	測試1	X1	X2	X3
2	測試2	X1	X2	X3
3	測試3	X1	X2	X3
4	測試4	X1	X2	X3
5	測試5	X1	X2	X3

我需要把它變成：

{
  "id":1,
  "description": "TESTE1",
  "columns": [
         "X1",
         "X2",
         "X3"
  ]
}

有人能幫我嗎？

Answer 1

這是一種方法。

（但我希望有人能找到更簡潔的方法來獲取字符串數組）

 select replace( replace( replace(json, '"[','['), ']"',']'), '`','"') as json from ( select t.id, t.description, ca.* from your_table t cross apply ( select concat('[`', string_agg([col], '`, `'), '`]') from (values (column1), (column2), (column3)) c(col) ) ca(columns) FOR JSON PATH ) q(json)

json
[{"id":1,"description":"TESTE1","columns":["X1", "X2", "X3"]},{"id":2,"description":"TESTE2", "columns":["X1", "X2", "X3"]},{"id":3,"description":"TESTE3","columns":["X1", "X2", "X3" ]},{"id":4,"description":"TESTE4","columns":["X1", "X2", "X3"]},{"id":5,"description":"TESTE5 ","列":["X1", "X2", "X3"]}]

關於db<>fiddle 的演示在這里