In Oracle, you can use the select statement with the "to_date" function to query data greater than the specified time. The syntax is "select * from table name where column name> to_date('specified time format','yyyy- mm-dd hh24:mi:ss')".
The operating environment of this tutorial: Windows 10 system, Oracle 11g version, Dell G3 computer.
How to query data in oracle that is greater than the specified time
The query results require records in a certain column that are greater than a certain point in time.
-- tablename 表名 -- columnname 列名 select * from tablename where columnname > to_date('2022:5:25 09:40:00','yyyy-mm-dd hh24:mi:ss');
Examples are as follows:
modifytime and create are both strings and need to be converted into time and compared with time; otherwise it will prompt that the text and characters are not the same match.
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For example: I want to check the data generated in a table from March 11, 2011 to March 24, 2011. The interval should be [2011-03-11 00:00:00, 2011-03-25 00:00:00)
-- that is, excluding the right 2011-03-25 00:00:00 The value at the time point!
-- So, please see the following:
-- View the data generated on the 24th of 2011
-- Method 1: Use... and ...
eygle@SZTYORA> select count(*) from t 2 where cdate>=to_date('2011-03-24','yyyy-mm-dd') 3 and cdate COUNT(*) ---------- 5
-- Method 2: Use between ... and ...
eygle@SZTYORA> select count(*) from t 2 where cdate between to_date('2011-03-24','yyyy-mm-dd') 3 and to_date('2011-03-25','yyyy-mm-dd'); COUNT(*) ---------- 6 eygle@SZTYORA> select * from t 2 where cdate between to_date('2011-03-24','yyyy-mm-dd') 3 and to_date('2011-03-25','yyyy-mm-dd') 4 order by cdate; CDATE ------------------- 2011-03-24 00:00:00 2011-03-24 02:03:45 2011-03-24 10:37:03 2011-03-24 20:55:17 2011-03-24 23:59:59 2011-03-25 00:00:00
6 rows have been selected.
-- It can be seen that the use of between ... and ... in the second method is wrong. It also includes the record of 2011-03-25 00:00:00!
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