大约有 9,000 项符合查询结果（耗时：0.0305秒） [XML]
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
...
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;
...
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
add a comment
|
...
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
...
Ruby on Rails: how do I sort with two columns using ActiveRecord?
...
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
12
...
How can I view live MySQL queries?
How can I trace MySQL queries on my Linux server as they happen?
12 Answers
12
...
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...