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how to get last insert id after insert query in codeigniter active record
...faik the insert_id() functions returns the id of the last insert performed by the db object you're using. This should handle concurrent inserts, shouldn't it? Please correct me if I'm wrong.
– Abraham Philip
Jul 20 '15 at 20:20
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MySQL foreign key constraints, cascade delete
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I got confused by the answer to this question, so I created a test case in MySQL, hope this helps
-- Schema
CREATE TABLE T1 (
`ID` int not null auto_increment,
`Label` varchar(50),
primary key (`ID`)
);
CREATE TABLE T2 (
`...
Naming “class” and “id” HTML attributes - dashes vs. underlines [closed]
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objectContainer.messageClass = new message(document.getElementById('message'));
objectContainer.messageClass.write('loaded');
}
asyncScript.src = 'message.js';
document.appendChild(asyncScript);
}else{
objectContainer.messageClass = new me...
How can I change CSS display none or block property using jQuery?
...e former function hides the text only and doesn't free up a space occupied by an element whereas latter hide the content and free up the space occupied by cocern element
– Dila Gurung
Oct 18 '18 at 17:10
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PostgreSQL Autoincrement
...OT NULL DEFAULT nextval('user_id_seq')
);
ALTER SEQUENCE user_id_seq OWNED BY user.user_id;
Better to use your own data type, rather than user serial data type.
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SQL Update with row_number()
... = x.New_CODE_DEST
FROM (
SELECT CODE_DEST, ROW_NUMBER() OVER (ORDER BY [RS_NOM]) AS New_CODE_DEST
FROM DESTINATAIRE_TEMP
) x
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What is a JavaBean exactly?
...ble, from the API documentation:
Serializability of a class is enabled by the class implementing the
java.io.Serializable interface. Classes that do not implement this
interface will not have any of their state serialized or deserialized.
All subtypes of a serializable class are themselves...
Difference Between One-to-Many, Many-to-One and Many-to-Many?
... ("I love her, but she doesn't love me")!
All of these are well supported by Hibernate and JPA. Just remember that Hibernate or any other ORM doesn't give a hoot about maintaining symmetry when managing bi-directional many-to-many relationships...thats all up to the application.
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SQL Server indexes - ascending or descending, what difference does it make?
...l1, col2 DESC);
can be used for either:
SELECT *
FROM mytable
ORDER BY
col1, col2 DESC
or:
SELECT *
FROM mytable
ORDER BY
col1 DESC, col2
, but not for:
SELECT *
FROM mytable
ORDER BY
col1, col2
An index on a single column can be efficiently used for so...
Restful way for deleting a bunch of items
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DELETE can potentially have the body ignored by HTTP infrastructure: stackoverflow.com/questions/299628/…
– Luke Puplett
Dec 9 '15 at 18:19
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