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Hibernate throws MultipleBagFetchException - cannot simultaneously fetch multiple bags
...getResultList();
In the first JPQL query, distinct DOES NOT go to the SQL statement. That's why we set the PASS_DISTINCT_THROUGH JPA query hint to false.
DISTINCT has two meanings in JPQL, and here, we need it to deduplicate the Java object references returned by getResultList on the Java...
How to create a database from shell command?
I'm looking for something like createdb in PostgreSQL or any other solution that would allow me to create database with a help of a shell command. Any hints?
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Restrict varchar() column to specific values?
...a way to specify, for example 4 distinct values for a varchar column in MS SQL Server 2008?
4 Answers
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Converting between java.time.LocalDateTime and java.util.Date
...17 23:53:28 using this approach. Take a look at the implementation of java.sql.Timestamp#toLocalDateTime() if you needed the result to be 1111-11-11 00:00:00 in the previous example.
– dog
Dec 5 '16 at 12:09
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How to detect READ_COMMITTED_SNAPSHOT is enabled?
In MS SQL Server is there a way to detect whether a database has had its isolation level set via the T-SQL command ALTER DATABASE <database> SET READ_COMMITTED_SNAPSHOT ON;
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Difference between a user and a schema in Oracle?
... @djangofan Afaik this question is about Oracle, and not about MS SQL.
– peterh - Reinstate Monica
Feb 19 '16 at 13:36
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What is the difference between “Class.forName()” and “Class.forName().newInstance()”?
... this:
package acme.db;
public class Driver {
static {
java.sql.DriverManager.registerDriver(new Driver());
}
...
}
Calling Class.forName("acme.db.Driver") causes the initialization of the acme.db.Driver class and thus the execution of the static initialization block. And ...
What is the difference between Integrated Security = True and Integrated Security = SSPI?
...I" used Kerberos, but they're now interchangeable.
– SqlRyan
Aug 4 '09 at 20:26
5
Didn't check la...
MySQL select where column is not empty
In MySQL, can I select columns only where something exists?
13 Answers
13
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Ruby on Rails: how do I sort with two columns using ActiveRecord?
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Assuming you're using MySQL,
Model.all(:order => 'DATE(updated_at), price')
Note the distinction from the other answers. The updated_at column will be a full timestamp, so if you want to sort based on the day it was updated, you need to use a ...