How would I go about adding the current date into the database (MySQL) when a user registers? I know I would need to add a row in the database (Join_date or something), what would I set that to when creating that row? timestamp? varchar?
I want to make it so when the user submits the registration form it adds the current date to the join date row.
Any help would be greatly appreciated.
Thanks.
Suppose structure is
field type
++++++++++++++++++++++
id INT
username varchar(10)
password varchar(10)
date datetime
Then use below query
INSERT INTO Table values (1,'username','password',NOW())
Hope this helps you...
Column type should be datetime
and while inserting row, use NOW() in query
Add a datetime column, and use NOW()doc to set the column when inserting a record.
This was asked many times.
See this question: Registration date . Its solution can be used well; it will automatically insert date.
Add a column TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
Make that field either MySQL internal date/time type (see http://dev.mysql.com/doc/refman/5.5/en/date-and-time-types.html) and use CURRDATE (http://dev.mysql.com/doc/refman/5.5/en/date-and-time-functions.html) to fill it, or simply make it int and fill it with POSIX time with time().
Personally I find the Unix timestamp better since it's easier to operate and it doesn't depend on the type of db.
You can use a code like this
INSERT INTO users (LastName, FirstName, DateColumn)
VALUES ("firstname", "lastname", NOW())
NOW() would insert the current date in the DateColumn field
try this:
INSERT INTO users (`LastName`, `FirstName`, `DateColumn`)
VALUES ("Fname", "LNamee", NOW())
assuming that you are using mysql, you can use field type DATETIME or TIMESTAMP.
usually I use DATETIME for created ("join date") fields and TIMESTAMP for lastupdated field, since it can be (easily) populated transparently by the RDBMS on update.
To get the current date you can use mysql function NOW().
for example:
INSERT INTO Users (`firstname`, `regdate`) VALUES ('herbie', NOW());
Related
when I fetch data from table "like date from 01/09/2017 to 30/09/2017" then it's okey..
BUT When I am trying to fetch data from date 01/09/2017 to 01/10/2017 then its only showing the data of DATE 01/10/2017(not previous month data i.e 01/09/2017)
I am using MySQL Database.
SELECT * FROM `tablename` where date between '01/09/2017' AND '01/10/2017'
If you are saving the value as DATE format it should work. If not (you are saving the data as VARCHAR you can convert it to date and get the correct results.
STR_TO_DATE('01/09/2017', '%m/%d/%Y')
You need to store dates as DATE type not VARCHAR or TEXT.
Also DB dates are in the format YYYY-MM-DD usually so you will need to adjust your query accordingly.
Due to speed trying to use STR_TO_DATE is a terrible idea, better to convert once and then use MySQL as intended.
Backup your data first and then I (think) the following will work
BEGIN;
ALTER TABLE `tablename`
ADD COLUMN `new_date` DATE;
UPDATE `tablename`
SET `new_date` = STR_TO_DATE(`date`, '%d/%m/%Y');
ALTER TABLE `tablename`
DROP COLUMN `date`;
ALTER TABLE `tablename`
CHANGE COLUMN `new_date` `date` DATE;
COMMIT;
Step By Step -
Add an extra column to store the data temporarily
Update the table and copy the current date column value (formatted
DB friendly date) into the new temp column.
Remove the old column
Change the column name to the previous name so all existing queries work.
Then your query is as simple as
SELECT * FROM `tablename` where date between '2017-09-01' AND '2017-10-01'
According to your example you have stored date as text so you need to apply STR_TO_DATE() to perform date operations
Try below query:
SELECT * FROM `tablename` where STR_TO_DATE(date,'%d/%m/%Y')between
STR_TO_DATE('01/09/2017','%d/%m/%Y') AND STR_TO_DATE('01/10/2017','%d/%m/%Y');
I just want to fetch the customer details from the customer table in between two dates with BETWEEN CLAUSE : the datatype of the created_Date field is timestamp and the default value is CURRENT_TIMESTAMP. I wrote the code like below:
SELECT membership_id FROM customers WHERE DATE_FORMAT( created_Date,
'%Y-%m-%d' ) BETWEEN '2016-05-07' AND '2016-06-08'
but even the above code not fetch data,
and when I do the below query
SELECT * FROM customers WHERE created_Date like'%2016-05-16%';
it works,
so from my knowledge there are some bug in BETWEEN CLAUSE.
anyone can help me?
No need for any conversion. Keep the timestamp field as is and provide the date parameters as string literals
SELECT id,created_Date FROM customers
WHERE created_Date BETWEEN '2016-05-07' AND '2016-05-08'
MySQL's type system can (and should) handle that.
see http://sqlfiddle.com/#!9/691df/1
p.s.: The second parameter could be '2016-05-08 23:59:59' to include the whole may 8th.
I have database in MYSQL with ID, Req_Order_No(Varchar) , Req_In_Time(DateTime), Req_Out_Time(DateTime)
The Sample row is like below:
1 W0CH546 2014-07-23 09:32:00 2014-07-24 01:42:00
The above Date and Time are in EST format. I want to convert both of them and store in IST format in other columns
I tried SELECT CONVERT_TZ('Req_In_Time','-05:00','+9:30');
But it returns NULL Values.
Please help. Do I need php also?
The quotes around Req_In_Time cause the error.
SELECT CONVERT_TZ(Req_In_Time,'-05:00','+9:30');
Also, you should never store time information in localtime.
Use UTC/GMT.
You can always convert it to the proper localtime when you display it.
Note: Of course you need to specify the table-name as well:
SELECT CONVERT_TZ(Req_In_Time,'-05:00','+9:30') FROM YOUR_TABLE_NAME;
So you add another column (e.g. column xxx) to YOUR_TABLE_NAME.
Then you update the values.
UPDATE YOUR_TABLE_NAME
SET xxx = CONVERT_TZ(Req_In_Time,'-05:00','+9:30')
BTW, to add the column:
ALTER TABLE YOUR_TABLE_NAME ADD COLUMN `xxx` datetime NULL ;
I have table in which I have birthdate , age location and Score and I want to retrieve the count of number of records created between two dates where score is not null and there is no time stamp field.
How can I do it if there is no time stamp field.
Is there any meta data and if it is , how can I run the query?
try a query like this:
SELECT COUNT(*)
FROM TABLE_NAME
WHERE BIRTHDATE BETWEEN 'DATE1' AND 'DATE2'
AND SCORE IS NOT NULL AND TIMESTAMP IS NULL;
Add a column timestamp to the existing table, with default value as NULL, and query the above statement, it should work.
Whenever you add a column, to a table already having records, the corresponding values are blank for that new column, for existing records.
Add a timestamp to your tables
Echoed here as other users have noted.
Because you have no date reference field in the database, you can't pull out records that match one or that are between two dates.
Your best bet from here on in, is to add a date field and then make sure when data is written to the DB, you insert a date/datetime using mysql now() function. There are a few different ways to achieve it, but this is probably the easiest:
mysql_query("
INSERT INTO users (first, last, whenadded)
VALUES ('$first', '$last', now())
";
how to get latest date and time in php and mysql using a select statement? is that possible
My field type is data time
it looks like this "2010-06-08 01:41:27" . any help is appreciated guys.
edit:
sorry not so clear with my question...(ugh!)
basically I have a column in my table which has a field of datetime (did I say it right, it has a data type of datetime?) , these are fill up already with some data , All I need to do is get the latest in that field, is there a need to compare it ?
i think you are looking for this:
select max(datetime_column) from table
But your question isn't all that clear.
In SQL, use this:
SELECT NOW();
to get the current date/time. In PHP, use the time() function.
You can also insert the current time into a database field using this SQL:
INSERT INTO `mytable` (`date`) VALUES (NOW());
use Select now()
this may help u
for getting any value
If you want to see the record with the latest datetime column in it, do this:
select * from your_table order by your_datetime_column desc limit 1;
With your question, it shows that you really wanted to get the latest input from your database which has the present date and time. I think this should solve your problem
SELECT * FROM table_name WHERE DATE(`date_and_time_column_name`)= CURDATE();
This will surely do the job.