Question

我有一个MySQL日志表，其中包含一个带有json字符串的列。 json字符串包含年，月，日，小时，分钟等，并自动作为日志插入。

样本表格式为

+-------+-------------------------------------------------------------------------------+
|logId  | log                                                                           |
+-------+-------------------------------------------------------------------------------+   
|   1   | { "Year": "2015", "Month": "04", Date": "24", "Hour": "01", "Minute": "00" }  |
|   2   | { "Year": "2015", "Month": "04", Date": "24", "Hour": "01", "Minute": "30" }  |
|   3   | { "Year": "2015", "Month": "04", Date": "24", "Hour": "02", "Minute": "00" }  |
|   4   | { "Year": "2015", "Month": "04", Date": "24", "Hour": "02", "Minute": "30" }  |
|   5   | { "Year": "2015", "Month": "04", Date": "24", "Hour": "03", "Minute": "00" }  |
|   6   | { "Year": "2015", "Month": "04", Date": "24", "Hour": "03", "Minute": "30" }  |
|   7   | { "Year": "2015", "Month": "04", Date": "24", "Hour": "04", "Minute": "00" }  |
|   8   | { "Year": "2015", "Month": "04", Date": "24", "Hour": "04", "Minute": "30" }  |
|   .   | .                                                                             |
|   .   | .                                                                         |
|   .   | .                                                                         |
|   .   | .                                                                             |
|   .   | { "Year": "2015", "Month": "04", Date": "24", "Hour": "23", "Minute": "00" }  |
|   .   | { "Year": "2015", "Month": "04", Date": "24", "Hour": "23", "Minute": "30" }  |
|   .   | { "Year": "2015", "Month": "04", Date": "25", "Hour": "00", "Minute": "00" }  |
|   .   | { "Year": "2015", "Month": "04", Date": "25", "Hour": "00", "Minute": "30" }  |
+-------+-------------------------------------------------------------------------------+

现在我如何选择每天和特定日期的02 Hrs and 30 mins和23 Hrs and 00 mins之间的行？

Answer 1

你可以试试这个：

select * from tablename where log 
not exists(select 1 from tablename where 
       log like '%"Hour": "01", "Minute": "00"%'
    or log like '%"Hour": "01", "Minute": "30"%' 
    or log like '%"Hour": "02", "Minute": "00"%' 
    or log like '%"Hour": "23", "Minute": "30"%' 
    or log like '%"Hour": "00", "Minute": "00"%' 
    or log like '%"Hour": "00", "Minute": "30"%' )

MySQL在两个时间值之间选择json格式的行

1 个答案: