[英]Filter SQL query where one column is a json
I have a column in SQL that has a JSON formatted data inside of it.我在 SQL 中有一个列,其中包含 JSON 格式的数据。 For example, lets call this column JSON and the first input would be
例如,让我们将此列称为 JSON,第一个输入将是
{
"ID" :123,
"NAME": NULL,
"FINISH": "MATTE"
}
How can I filter this column and only display values that don't have a NULL input in a variable such as "NAME"?如何过滤此列并仅显示在“NAME”等变量中没有 NULL 输入的值?
I'd go with the following approach:我会采用以下方法:
select *
from <your_table>
where json_value(<your_json_column>, '$.name') is not null;
In the query above, you'd only need to change <your_table>
for the actual name of the table, and <your_json_column>
for the actual name of the JSON column.在上面的查询中,您只需将
<your_table>
更改为表的实际名称,将<your_json_column>
your_json_column> 更改为 JSON 列的实际名称。
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