大约有 40,000 项符合查询结果（耗时：0.0354秒） [XML]
List of all index & index columns in SQL Server DB
...This query's getting pretty close to what you're looking for:
SELECT
TableName = t.name,
IndexName = ind.name,
IndexId = ind.index_id,
ColumnId = ic.index_column_id,
ColumnName = col.name,
ind.*,
ic.*,
col.*
FROM
sys.indexes ind
INNER JOIN
sys.i...
Should I use the datetime or timestamp data type in MySQL?
...y default, so to solve that matter U should write Your own trigger to that table, to insert current date (without time) in the field/col with DATE mysql type.
– Arthur Kushman
Oct 15 '12 at 19:13
...
How to get the mysql table columns data type?
I want to get the column data type of a mysql table.
11 Answers
11
...
Insert results of a stored procedure into a temporary table
How do I do a SELECT * INTO [temp table] FROM [stored procedure] ? Not FROM [Table] and without defining [temp table] ?
...
SQL exclude a column using SELECT * [except columnA] FROM tableA?
We all know that to select all columns from a table, we can use
41 Answers
41
...
An efficient compression algorithm for short text strings [closed]
...
Check out Smaz:
Smaz is a simple compression library suitable for compressing very short
strings.
share
|
improve this answer
|
follow
|
...
Altering column size in SQL Server
How to change the column size of the salary column in the employee table from numeric(18,0) to numeric(22,5)
6 Answe...
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.
...
How do I get SUM function in MySQL to return '0' if no values are found?
...Use COALESCE to avoid that outcome.
SELECT COALESCE(SUM(column),0)
FROM table
WHERE ...
To see it in action, please see this sql fiddle: http://www.sqlfiddle.com/#!2/d1542/3/0
More Information:
Given three tables (one with all numbers, one with all nulls, and one with a mixture):
SQL Fidd...
Fastest way to count exact number of rows in a very large table?
I have come across articles that state that SELECT COUNT(*) FROM TABLE_NAME will be slow when the table has lots of rows and lots of columns.
...