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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
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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 ...
Oracle query to fetch column names
I have a mySQL query to get columns from a table like this:
12 Answers
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How can I view live MySQL queries?
How can I trace MySQL queries on my Linux server as they happen?
12 Answers
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Reason for Column is invalid in the select list because it is not contained in either an aggregate f
...hat its not "clear which value to choose for b in each group". Why doesn't SQL put b1,b2,b3 all together in that column ?
– david blaine
Dec 22 '12 at 4:51
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How to copy from CSV file to PostgreSQL table with headers in CSV file?
...can easily create column names and infer data types from a csv file.
from sqlalchemy import create_engine
import pandas as pd
engine = create_engine('postgresql://user:pass@localhost/db_name')
df = pd.read_csv('/path/to/csv_file')
df.to_sql('pandas_db', engine)
The if_exists parameter can be set...