大约有 37,000 项符合查询结果（耗时：0.0282秒） [XML]
Facebook database design?
...
Keep a friend table that holds the UserID and then the UserID of the friend (we will call it FriendID). Both columns would be foreign keys back to the Users table.
Somewhat useful example:
Table Name: User
Columns:
UserID PK
Emai...
What's the purpose of SQL keyword “AS”?
You can set table aliases in SQL typing the identifier right after the table name.
9 Answers
...
Center image in table td in CSS
I've been trying to align an image to the center of the table td. It worked with setting margin-left to a specific value but it also increased the size of td too and that isn't exactly what I wanted
...
How to put spacing between TBODY elements
I have a table like this:
12 Answers
12
...
LINQ to SQL: Multiple joins ON multiple Columns. Is this possible?
...olumns in Linq to SQL is a little different.
var query =
from t1 in myTABLE1List // List<TABLE_1>
join t2 in myTABLE1List
on new { t1.ColumnA, t1.ColumnB } equals new { t2.ColumnA, t2.ColumnB }
...
You have to take advantage of anonymous types and compose a type for the mu...
How do I migrate a model out of one django app and into a new one?
...rd code
#to use just one sentence:
def forwards(self, orm):
db.rename_table('common_cat', 'specific_cat')
if not db.dry_run:
# For permissions to work properly after migrating
orm['contenttypes.contenttype'].objects.filter(
app_label='common',
model...
Calculate a Running Total in SQL Server
Imagine the following table (called TestTable ):
15 Answers
15
...
Get Insert Statement for existing row in MySQL
...ut you can get them using mysqldump like Rob suggested. Specify -t to omit table creation.
mysqldump -t -u MyUserName -pMyPassword MyDatabase MyTable --where="ID = 10"
share
|
improve this answer
...
How to select rows that have current day's timestamp?
I am trying to select only today's records from a database table.
9 Answers
9
...
How to create composite primary key in SQL Server 2008
I want to create tables in SQL Server 2008, but I don't know how to create composite primary key. How can I achieve this?
8...