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Can you create nested WITH clauses for Common Table Expressions?
...paths AS (
SELECT
EmployeeID,
CONVERT(VARCHAR(900), CONCAT('.', EmployeeID, '.')) AS FullPath
FROM EmployeeHierarchyWide
WHERE ManagerID IS NULL
UNION ALL
SELECT
ehw.EmployeeID,
CONVERT(VARCHAR(900), CONCAT(p.FullPath, ehw.EmployeeID, '.')...
Find and Replace text in the entire table using a MySQL query
...lace = "replace_with_this_text";
$loop = mysql_query("
SELECT
concat('UPDATE ',table_schema,'.',table_name, ' SET ',column_name, '=replace(',column_name,', ''{$find}'', ''{$replace}'');') AS s
FROM
information_schema.columns
WHERE
table_schema = '{$database}'")
o...
Easy way to convert Iterable to Collection
...of appending a source Collection with another element. I can use Iterables.concat() but that gives an Iterable, not a Collection :(
– Hendy Irawan
May 10 '14 at 11:53
1
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Adding values to a C# array
...
Using Linq's method Concat makes this simple
int[] array = new int[] { 3, 4 };
array = array.Concat(new int[] { 2 }).ToArray();
result
3,4,2
share
|
...
Install dependencies globally and locally using package.json
...
@CMCDragonkai concat them with &&, for instance npm install -g bower && npm install -g grunt-cli
– Matsemann
Dec 17 '13 at 12:07
...
Max or Default?
...f it is actually the minimum. To determine which option is more efficient (Concat, FirstOrDefault or Take(1)), you should perform adequate benchmarking.
double x = context.MyTable
.Where(y => y.MyField == value)
.Select(y => y.MyCounter)
.Concat(new double[]{Double.MinValue})
...
Show constraints on tables command
...e_name = 'my_table'
Or for better formatted output use this:
select
concat(table_name, '.', column_name) as 'foreign key',
concat(referenced_table_name, '.', referenced_column_name) as 'references'
from
information_schema.key_column_usage
where
referenced_table_name is not null
...
How to check if an object is an array?
...r ];
}
Or if you're not concerned about performance, you could just do a concat to a new empty Array.
someVar = [].concat( someVar );
There's also the constructor which you can query directly:
if (somevar.constructor.name == "Array") {
// do something
}
Check out a thorough treatment f...
How do I check if an index exists on a table field in MySQL?
... b.table_type = 'BASE TABLE'
left join (
select concat(x.name, '/', y.name) full_path_schema, y.name index_name
FROM information_schema.INNODB_SYS_TABLES as x
JOIN information_schema.INNODB_SYS_INDEXES as y on x.TABLE_ID = y.TABLE_ID
WHERE x.name = 'your_schema'
...
How to do ToString for a possibly null object?
...nger than just "" + myObj. But I've read that creates extra strings. str.Concat(myObj) seems to work just fine and is "even faster".
– drzaus
Dec 1 '17 at 17:48
add a commen...