1.模糊查询json类型字段
存储的数据格式(字段名 people_json):
{“name”: “zhangsan”, “age”: “13”, “gender”: “男”}
代码如下(示例):
select * from table_name where people_json->'$.name' like '%zhang%'
2.精确查询json类型字段
存储的数据格式(字段名 people_json):
{“name”: “zhangsan”, “age”: “13”, “gender”: “男”}
代码如下(示例):
select * from table_name where people_json-> '$.age' = 13
3.模糊查询JsonArray类型字段
存储的数据格式(字段名 people_json):
[{“name”: “zhangsan”, “age”: “13”, “gender”: “男”}]
代码如下(示例):
select * from table_name where people_json->'$[*].name' like '%zhang%'
4.精确查询JsonArray类型字段
存储的数据格式(字段名 people_json):
[{“name”: “zhangsan”, “age”: “13”, “gender”: “男”}]
代码如下(示例):
select * from table_name where JSON_CONTAINS(people_json,JSON_OBJECT('age', "13"))
5多层级关系,模糊查询所有的
存储的数据格式(字段名 people_json):
[{“a”: “zhangsan”, “b”: “13”, “person”: {“name”: “zhangsan”, “age”: “13”, “gender”: “男”}]}]
select * from table_name where people_json->'$**.name' like '%zhang%'
或者
多层级关系,精确匹配 查询
select * from oamm_receive_message where JSON_SEARCH(people_json, 'all', 'zhang',NULL, '$**.name') !=''