大约有 37,000 项符合查询结果（耗时：0.0280秒） [XML]
What replaces cellpadding, cellspacing, valign, and align in HTML5 tables?
...
/* cellpadding */
th, td { padding: 5px; }
/* cellspacing */
table { border-collapse: separate; border-spacing: 5px; } /* cellspacing="5" */
table { border-collapse: collapse; border-spacing: 0; } /* cellspacing="0" */
/* valign */
th, td { vertical-align: top; }
/* align (center) ...
How to randomly select rows in SQL?
I am using MSSQL Server 2005. In my db, I have a table "customerNames" which has two columns "Id" and "Name" and approx. 1,000 results.
...
Can PHP PDO Statements accept the table or column name as parameter?
Why can't I pass the table name to a prepared PDO statement?
7 Answers
7
...
Database Design for Revisions?
...
Do not put it all in one table with an IsCurrent discriminator attribute. This just causes problems down the line, requires surrogate keys and all sorts of other problems.
Design 2 does have problems with schema changes. If you change the Employees...
How can I tell when a MySQL table was last updated?
...updated the xx/xx/200x" with this date being the last time a certain mySQL table has been updated.
15 Answers
...
How to shrink/purge ibdata1 file in MySQL
... is, everytime I run a R script, I create a new database (A), create a new table (B), import the data into B, submit a query to get what I need, and then I drop B and drop A.
...
MySQL - Rows to Columns
...e of terms that I'll use for the rest of this post. This will be the base table:
select * from history;
+--------+----------+-----------+
| hostid | itemname | itemvalue |
+--------+----------+-----------+
| 1 | A | 10 |
| 1 | B | 3 |
| 2 | A | ...
LAST_INSERT_ID() MySQL
...hat I think must be quite easy. I need to return the LAST INSERTED ID from table1 when I run the following MySql query:
11 ...
How to create a DataTable in C# and how to add rows?
How do create a DataTable in C#?
13 Answers
13
...
How can I list ALL grants a user received?
...
If you want more than just direct table grants (e.g., grants via roles, system privileges such as select any table, etc.), here are some additional queries:
System privileges for a user:
SELECT PRIVILEGE
FROM sys.dba_sys_privs
WHERE grantee = <theUser...