大约有 5,887 项符合查询结果（耗时：0.0242秒） [XML]
CSS vertical alignment text inside li
...
Define the parent with display: table and the element itself with vertical-align: middle and display: table-cell.
share
|
improve this answer
|
...
clear table jquery
I have an HTML table filled with a number of rows.
10 Answers
10
...
MySQL error: key specification without a key length
I have a table with a primary key that is a varchar(255). Some cases have arisen where 255 characters isn't enough. I tried changing the field to a text, but I get the following error:
...
Select Last Row in the Table
I would like to retrieve the last file inserted into my table. I know that the method first() exists and provides you with the first file in the table but I don't know how to get the last insert.
...
How do MySQL indexes work?
...ically, how can they return the data requested without scanning the entire table?
8 Answers
...
SQL SELECT speed int vs varchar
I'm in the process of creating a table and it made me wonder.
9 Answers
9
...
How to Use slideDown (or show) function on a table row?
I'm trying to add a row to a table and have that row slide into view, however the slidedown function seems to be adding a display:block style to the table row which messes up the layout.
...
difference between primary key and unique key
...
Primary Key:
There can only be one primary key in a table
In some DBMS it cannot be NULL - e.g. MySQL adds NOT NULL
Primary Key is a unique key identifier of the record
Unique Key:
Can be more than one unique key in one table
Unique key can have NULL values
It can be a can...
Deleting rows with MySQL LEFT JOIN
I have two tables, one for job deadlines, one for describe a job. Each job can take a status and some statuses means the jobs' deadlines must be deleted from the other table.
...
How does a hash table work?
I'm looking for an explanation of how a hash table works - in plain English for a simpleton like me!
15 Answers
...