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2025-09-25 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Database >
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Oracle comes with database query tools.
Check which tables are in the database
Select * from tab
Query table structure
Desc pas_alarm_info
Formatting fields of type date, string output
Select to_char (alarm_time, 'yyyy-mm-dd hh34:mi:ss') from pas_alarm_info
To_char (alarm_time
2019-09-06 12:12:12
By default, it appears as follows:
Select alarm_time from pas_alarm_info
Alarm_time
06-September-19
Date string insertion, need to be converted
Insert into tabname (datecol) value (to_date ('2014-02-14 20 value 47 to_date))
Execute script
@ C:test\ mysql.sql
Be careful
SQL Plus additions, deletions and modifications enable transactions by default, so if you do not execute the commit instruction, you will still keep it in memory and do not really write to the library
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