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Programming is thinking, not typing |
A quine is a computer program which takes no input and produces a copy of its own source code as its only output. The challenge for programmers is to write the shortest code in the given language. Here are my examples in Transact SQL and in ANSI SQL.
Note that …
There are several methods to implement the dynamic ordering of result returned by SQL query. The examples of stored procedures below use the Microsoft's demo database AdventureWorks.
USE AdventureWorks
GO
The sequence of IF..ELSE looks not so pretty but is efficient and rapid. When you …
The rand() Transact SQL function produces a sequence of same numbers in the query. For example:
SELECT rand() AS rand_value, id
FROM
( SELECT 1 AS id
UNION SELECT 2 AS id
UNION SELECT 3 AS id
) AS t1;
This query shows the following result:
rand_value id
---------------------- -----------
0,581556027773794 1
0 …How much of disk space is used by tables?
DECLARE @TableInfo TABLE (
table_name sysname,
row_count int,
reserved_size_kb nvarchar(50),
data_size_kb nvarchar(50),
index_size_kb nvarchar(50),
unused_size_kb nvarchar(50)
)
INSERT INTO @TableInfo
EXEC sp_MSforeachtable 'sp_spaceused ''?'''
UPDATE @TableInfo
SET
data_size_kb = replace(data_size_kb, 'KB', ''),
reserved_size_kb = replace(reserved_size_kb, 'KB', ''),
index_size_kb = replace(index_size_kb, 'KB', ''),
unused_size_kb …