大约有 44,000 项符合查询结果（耗时：0.0379秒） [XML]
What's the difference between RANK() and DENSE_RANK() functions in oracle?
...
10 Answers
10
Active
...
Difference between Math.Floor() and Math.Truncate()
...
12 Answers
12
Active
...
MySQL selecting yesterday's date
...
168
The simplest and best way to get yesterday's date is:
subdate(current_date, 1)
Your query w...
How to remove leading and trailing whitespace in a MySQL field?
...
11 Answers
11
Active
...
SQL: How to properly check if a record exists
...
It's better to use either of the following:
-- Method 1.
SELECT 1
FROM table_name
WHERE unique_key = value;
-- Method 2.
SELECT COUNT(1)
FROM table_name
WHERE unique_key = value;
The first alternative should give you no result or one result, the second count should be zero or...
How to convert 1 to true or 0 to false upon model fetch
...th true or false into a boolean/tinyint field in the database, which uses 1 or 0 .
4 Answers
...
Highlight the difference between two strings in PHP
...
13 Answers
13
Active
...
What is the ultimate postal code and zip regex?
...
132
There is none.
Postal/zip codes around the world don't follow a common pattern. In some count...