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Is there a MySQL option/feature to track history of changes to records?
...on. Whilst you can, just about, reconstruct the state of the database just by looking at audit tables, it's hard and error prone, and for any complicated database logic, it becomes unwieldy. For instance, if the business wants to know "find the addresses of the letters we should have sent to custome...
How to create a date and time picker in Android? [closed]
...I think this response should be updated. The DateSlider library referenced by Rabi all the way below seems to be perfect for this.
– Stephan Branczyk
Aug 7 '11 at 21:09
...
How to get a value of an element by name instead of ID
...ue of an element via the attribute name instead of the ID . eg if I use by id it would be $('#id').val();
9 Answers
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SQL query for finding records where count > 1
...
Use the HAVING clause and GROUP By the fields that make the row unique
The below will find
all users that have more than one payment per day with the same account number
SELECT
user_id ,
COUNT(*) count
FROM
PAYMENT
GROUP BY
account,
user_id ,...
How to add an auto-incrementing primary key to an existing table, in PostgreSQL?
...TER TABLE test1 ADD COLUMN id INTEGER;
CREATE SEQUENCE test_id_seq OWNED BY test1.id;
ALTER TABLE test ALTER COLUMN id SET DEFAULT nextval('test_id_seq');
UPDATE test1 SET id = nextval('test_id_seq');
Again, in recent versions of Postgres this is roughly equivalent to the single command abov...
Objective-C: difference between id and void *
...ng called has not been declared in any of the @interface declarations seen by the compiler.
Thus, one should never refer to an object as a void *. Similarly, one should avoid using an id typed variable to refer to an object. Use the most specific class typed reference you can. Even NSObject *...
How to update two tables in one statement in SQL Server 2005?
...cumentation (emphasis is mine).
UPDATE (Transact-SQL)
The view referenced by table_or_view_name must be updatable and reference exactly one base table in the FROM clause of the view. For more information about updatable views, see CREATE VIEW (Transact-SQL).
CREATE VIEW (Transact-SQL)
You can mod...
The JPA hashCode() / equals() dilemma
...like to discuss them JPA-implementation-neutrally (I am using EclipseLink, by the way).
20 Answers
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Remove element by id
... }
}
And then you can remove elements like this
document.getElementById("my-element").remove();
or
document.getElementsByClassName("my-elements").remove();
Note: this solution doesn't work for IE 7 and below. For more info about extending the DOM read this article.
EDIT: Reviewing my a...
How do I get the “id” after INSERT into MySQL database with Python?
...
Also, cursor.lastrowid (a dbapi/PEP249 extension supported by MySQLdb):
>>> import MySQLdb
>>> connection = MySQLdb.connect(user='root')
>>> cursor = connection.cursor()
>>> cursor.execute('INSERT INTO sometable VALUES (...)')
1L
>>> conn...