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SQL variable to hold list of integers
...e @listOfIDs table (id int);
insert @listOfIDs(id) values(1),(2),(3);
select *
from TabA
where TabA.ID in (select id from @listOfIDs)
or
declare @listOfIDs varchar(1000);
SET @listOfIDs = ',1,2,3,'; --in this solution need put coma on begin and end
select *
from TabA
where charindex(',' + C...
What's the difference between std::move and std::forward
...alue of type X and returns an rvalue of type X.
With std::forward you can select the destination to some extent:
X x;
std::forward<Y>(x);
Casts the lvalue expression x of type X to an expression of type Y. There are constraints on what Y can be.
Y can be an accessible Base of X, or a ref...
SQL/mysql - Select distinct/UNIQUE but return all columns?
...
You're looking for a group by:
select *
from table
group by field1
Which can occasionally be written with a distinct on statement:
select distinct on field1 *
from table
On most platforms, however, neither of the above will work because the behavior o...
MYSQL Truncated incorrect DOUBLE value
...
Same issue for me. A 'select * from t where id = 6503' worked okay but 'update t set a = "foo" where id = 6503' resulted in ERROR 1292 (22007): Truncated incorrect DOUBLE value: '234805557438#'. id looks like integer but was a varchar. Quoting th...
Convert Datetime column from UTC to local time in select statement
I'm doing a few SQL select queries and would like to convert my UTC datetime column into local time to be displayed as local time in my query results. Note, I am NOT looking to do this conversion via code but rather when I am doing manual and random SQL queries against my databases.
...
Oracle Differences between NVL and Coalesce
...the first non-NULL (there are some exceptions, such as sequence NEXTVAL):
SELECT SUM(val)
FROM (
SELECT NVL(1, LENGTH(RAWTOHEX(SYS_GUID()))) AS val
FROM dual
CONNECT BY
level <= 10000
)
This runs for almost 0.5 seconds, since it generates...
Does MS SQL Server's “between” include the range boundaries?
....000
3 2010-05-01 00:00:00.000
4 2010-07-31 00:00:00.000
Query:
SELECT
*
FROM
tbl
WHERE
Start BETWEEN '2010-04-01 00:00:00' AND '2010-05-01 00:00:00'
Results:
ID Start
1 2010-04-30 00:00:01.000
2 2010-04-02 00:00:00.000
...
Filling a DataSet or DataTable from a LINQ query result set
...order.Field<DateTime>("OrderDate") > new DateTime(2001, 8, 1)
select order;
// Create a table from the query.
DataTable boundTable = query.CopyToDataTable<DataRow>();
Why won't that work for you?
share
...
Can a C# class inherit attributes from its interface?
...e T : Attribute
{
return GetCustomAttributes( type, typeof( T ), false ).Select( arg => (T)arg ).ToArray();
}
/// <summary>Searches and returns attributes.</summary>
/// <typeparam name="T">The type of attribute to search for.</typeparam>
/// <param name="type">Th...
How to concatenate text from multiple rows into a single text string in SQL server?
...y, John, Sam
2 Alaina, Edward
I used the following T-SQL:
SELECT Main.SubjectID,
LEFT(Main.Students,Len(Main.Students)-1) As "Students"
FROM
(
SELECT DISTINCT ST2.SubjectID,
(
SELECT ST1.StudentName + ',' AS [text()]
FR...