I am trying to insert a date & time value into table
Here is my query
Insert INTO tableName(attDate) VALUES ("22-Sep-2019 19:28:10")
Here attDate column is having type datetime, i have tried above query using DATE_FORMAT function but no luck. And also i am not suppose to use the date value in a variable. Will anybody guide me to proper way.
You can use Str_To_Date() function to convert a datetime value to MySQL datetime format (YYYY-MM-DD HH:MM:SS)
Insert INTO tableName(attDate)
VALUES (STR_TO_DATE('22-Sep-2019 19:28:10', '%d-%b-%Y %T'))
Details:
%d Day of the month as a numeric value (01 to 31)
%b Abbreviated month name (Jan to Dec)
%Y Year as a numeric, 4-digit value
%T Time in 24 hour format (hh:mm:ss)
Related
The default date format in my SQL is : '2019-05-06'
and its fine but when i insert date to my table i want this format 2019-5-6 not the above format
It means month and day must be start 1 to 30 not 01 to 31.Is there any way to change default format in my sql?
You seem to be looking for the MySQL STR_TO_DATE function :
It takes a string str and a format string format. STR_TO_DATE() returns a DATETIME value if the format string contains both date and time parts, or a DATE or TIME value if the string contains only date or time parts.
So if the date coming out of your application is like '2019-5-6', to convert it to a MySQL date you need :
STR_TO_DATE('2019-5-6', '%Y-%c-%e')
In an INSERT statement :
INSERT INTO mytable VALUES(1, STR_TO_DATE('2019-5-6', '%Y-%c-%e'));
Tip :
%Y : Year as a numeric, 4-digit value
%c : numeric month name (0 to 12)
%e: day of the month as a numeric value (0 to 31)
The default way to store a date in a MySQL database is by using DATE. The proper format of a DATE is: YYYY-MM-DD. If you try to enter a date in a format other than the Year-Month-Day format, it might work but it won't be storing the dates as you expect.
In order to run a MySQL Insert command and add the current date into your table you can use MySQL's built-in function CURDATE() in your query.
An example of how to Insert a Date in MySQL using CURDATE
$query_auto = "INSERT INTO tablename (col_name, col_date) VALUE ('DATE: Auto CURDATE()', CURDATE() )";
Also, you can run a query to set the date manually
An example of how to Insert a Date in MySQL manually
$query_manual = "INSERT INTO tablename (col_name, col_date) VALUES ('DATE: Manual Date', '2008-7-04')";
It is recommended to do the date formatting when doing a query, like so:
SELECT DATE_FORMAT(BirthDate, "%W %M %e %Y") FROM Employees;
You can find more examples of formatting the date here:
https://www.w3schools.com/sql/func_mysql_date_format.asp
I have a date column that has the date and time stored in string format in my sql database. I am trying to convert to a proper date-time field, but when I use the STR_TO_DATE function it is only reading the 2nd digit of my 2 digit hour field.
For example
SELECT '2018-11-26 15:55:58', STR_TO_DATE('2018-11-26 15:55:58', '%Y-%m-%D %T')
is returning:
'2018-11-26 15:55:58', '2018-11-26 05:55:58'
I am trying to understand what I'm doing wring, the hour is being incorrectly calculated
You're supposed to use %d (Day of the month, numeric (00..31)) instead of %D (Day of the month with English suffix (0th, 1st, 2nd, 3rd, …)).
Apparently it considers two characters after 26 as the ordinal suffix.
In mysql database,column name created.This "created " column is text datatype,I need to change this to datetime.Now this column have so many datas.Is it possible to convert it or?
Database look like
created
18-11-15 18:21:25
Expecting ouput is
created
2018-11-15 18:21:25
When am doing
ALTER TABLE invoices MODIFY created datetime
This query giving wrong data.its converting from 15-09-18 03:03:43 to 2015-09-18 03:03:43
If the original data is not in MySQL Datetime format (YYYY-MM-DD HH:MM:SS), you cannot just change the column datatype from Varchar/Text to Date/Datetime. Otherwise, there will be an irreparable Data loss.
This will be a multi-step process. You will first need to convert the date string to MySQL date format (YYYY-MM-DD HH:MM:SS). We can use STR_TO_DATE() function for this.
Your sample date string (18-11-15 18:21:25) is basically in %y-%m-%d %T format. Following format specifiers can be used:
%d Day of the month as a numeric value (01 to 31)
%m Month name as a numeric value (00 to 12)
%y Year as a numeric, 2-digit value
%T Time in 24 hour format (hh:mm:ss)
The query to update the date would look as follows:
UPDATE invoices
SET created = STR_TO_DATE(created, '%y-%m-%d %T');
Now, you can use Alter Table to change the data type from Text type to Datetime.
ALTER TABLE invoices
MODIFY COLUMN created datetime;
The best thing to do here is to not store your dates as text. Assuming you have already done this, we can cope by calling STR_TO_DATE to generate a bona fide date:
SELECT
STR_TO_DATE(created, '%y-%m-%d %h:%i:%s') AS created_out
FROM yourTable;
Since the output you expect is standard date output, we can stop here and avoid also calling DATE_FORMAT to generate a different output.
you want to convert output or database records ? for second you can use sql query :
UPDATE 'table_name' SET 'created' = CONCAT('20', 'created')
You will need first to interchange the day with the year in the created column, as follows:
UPDATE invoices
SET created = CONCAT(SUBSTR(created, 7, 2), '-', SUBSTR(created, 4, 2), '-', SUBSTR(created, 1, 2));
Then, you convert the column to DATETIME, as follows:
ALTER TABLE invoices MODIFY created DATETIME;
Hope this helps.
I have my sql database which have a field date and its type is varchar,I want to convert it into the Date but i have a lot of record in this field.
Kindly guide me how i can covert it into Date type without loosing my data.
It's looking like : 20-10-2018
But i want to change the date column varchar type to Date.
Thanks.
You will first need to convert the date string (varchar) to MySQL date format (YYYY-MM-DD). We can use STR_TO_DATE() function for this.
Your sample date string (20-10-2018) is basically in dd-mm-yyyy format. Following format specifiers can be used:
%d Day of the month as a numeric value (01 to 31)
%m Month name as a numeric value (00 to 12)
%Y Year as a numeric, 4-digit value
The query to update the date would look as follows (DB Fiddle DEMO):
UPDATE your_table_name
SET date_column_name = STR_TO_DATE(date_column_name, '%d-%m-%Y');
Now, you can use Alter Table to change the data type from varchar to date.
ALTER TABLE your_table_name
MODIFY COLUMN date_column_name date;
I have a column in a MySQL database that has dates in the form:
Tue Oct 25 2016. I am trying to get it in the form 10/25/2016.
I did some research and tried this:
SELECT DATE_FORMAT(Date, '%d/%m/%Y') FROM table;
But it is returning null
Any help would be greatly appreciated.
Firstly, you will need to convert your date string to MySQL date format ('YYYY-MM-DD'), using STR_TO_DATE function. To convert from string, we have to specify the current format of the date string. In your case, it is '%a %b %d %Y'. Note that the % character is required before format specifier characters.
Details:
%a Abbreviated weekday name (Sun to Sat)
%b Abbreviated month name (Jan to Dec)
%d Day of the month as a numeric value (01 to 31)
%Y Year as a numeric, 4-digit value
Now, you can utilize DATE_FORMAT function to convert the MySQL date into the desired date string format. In your case, it will be: '%m/%d/%Y'
Details:
%d Day of the month as a numeric value (01 to 31)
%m Month name as a numeric value (00 to 12)
%Y Year as a numeric, 4-digit value
Try the following query:
SELECT DATE_FORMAT(STR_TO_DATE(Date, '%a %b %d %Y'), '%m/%d/%Y')
FROM table;
Complete list of available format specifiers can be seen at: https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_date-format