How do I represent the current time in MySQL?In fact, the expression is still quite a lot of, summarized as follows:Current_timestampCurrent_timestamp ()Now ()LocalTimeLocalTime ()LocaltimestampLocaltimestamp ()Ii. Comparison of Timestamp and
Int
(1). 4 byte storage, the length of the int is 4 bytes, the storage space is less than datatime, the int index storage space is also relatively small, the sorting and the query efficiency is relatively higher a little(2) The readability is
MySQL date data type and time type usage summary MySQL date type: Date format, storage space occupied, date range comparison.
Date type storage space date format date range
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MySQL date type: Date Format, storage space occupied, and date range comparison.Date type storage space date format date range-----------------------------------------------------------------------------------Datetime 8 bytes YYYY-MM-DD hh: mm: SS 10
Why can I use the int type for the time field in the mysql database? what are the advantages of the datetime type? I have seen some mysql database designs, such as the time field in the phpwind Forum, using int (10 )? It indicates that the time
Mysql acquires datetime-type data, followed by A. 0 implementation method, datetime.0
The data type of mysql is datetime, and the data stored in the database is 05:02:02. Uploaded to java becomes 05:02:02. 0, with an additional tail. 0,
You can
This article describes how to use php to insert data to the datetime type of MySQL, if you are curious about this technique of using php to insert data into the MySQL datetime type, the following articles will unveil its mystery.
We need to use the
Some time ago, the project involved the conversion between MySQL and MSSQL data types. Recently, I was studying Sina Weibo's API, which involved the conversion of GMT time types with time zones, this is a special record for future query.
I.
usually storage time with datetime type, and now many systems also use int storage time, what difference do they have? Individuals prefer to use int this is good for date calculations, so let's look at the kind of things that would be better. int(1).
MySQL date type DATETIME and TIMESTAMPThere are three types of dates in MySQL5: DATETIME, DATE, and TIMESTAMP, except that DATE is used to indicate a DATE without time and second, and the other two have time and second. TIMESTAMP can also be
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