大约有 10,158 项符合查询结果（耗时：0.0237秒） [XML]
How to create has_and_belongs_to_many associations in Factory girl
Given the following
11 Answers
11
...
How to Execute SQL Server Stored Procedure in SQL Developer?
I've been given a user account to a SQL Server database that only has privileges to execute a stored procedure. I added the JTDS SQL Server JDBC jar file to SQL Developer and added it as a Third Party JDBC driver. I can successfully log in to the SQL Server database. I was given this syntax for run...
Determine the number of NA values in a column
I want to count the number of NA values in a data frame column. Say my data frame is called df , and the name of the column I am considering is col . The way I have come up with is following:
...
How to convert date to timestamp?
I want to convert date to timestamp, my input is 26-02-2012 . I used
13 Answers
13
...
git clone from another directory
I am trying to clone repo from another directory.
8 Answers
8
...
Regular Expression: Any character that is NOT a letter or number
I'm trying to figure out the regular expression that will match any character that is not a letter or a number. So characters such as (,,@,£,() etc ...
...
PHP parse/syntax errors; and how to solve them
Everyone runs into syntax errors. Even experienced programmers make typos. For newcomers, it's just part of the learning process. However, it's often easy to interpret error messages such as:
...
How to alter SQL in “Edit Top 200 Rows” in SSMS 2008
In SQL Server 2008 Management Studio, when I right click on a database table and choose " Select Top 100 Rows ", I can then e.g. easily add a "ORDER BY " statement to the SQL. That works fine .
...
Git: See my last commit
I just want to see the files that were committed in the last commit exactly as I saw the list when I did git commit . Unfortunately searching for
...
get UTC time in PHP
How can I get UTC/GMT +/- time stamp using PHP's date() function? For example, if I try
12 Answers
...