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MySql export schema without data
...e the view definition. So if yo had a view like following
create view v1
select `a`.`id` AS `id`,
`a`.`created_date` AS `created_date`
from t1;
with --no-data option, view definition will get changed to following
create view v1
select 1 AS `id`, 1 AS `created_date`
...
How to select the rows with maximum values in each group with dplyr? [duplicate]
I would like to select a row with maximum value in each group with dplyr.
6 Answers
6
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Types in MySQL: BigInt(20) vs Int(20)
...E TABLE foo ( bar INT(20) ZEROFILL );
INSERT INTO foo (bar) VALUES (1234);
SELECT bar from foo;
+----------------------+
| bar |
+----------------------+
| 00000000000000001234 |
+----------------------+
It's a common source of confusion for MySQL users to see INT(20) and assume ...
Google Docs/Drive - number the headings
...a blank project
Paste the the code below and save with your preffered name
Select Run > onOpen and authorize the script for the first time
Select Run > onOpen
Change to your Document and try the functions on the Headings tools custom menu created.
~~Disclaimer: you may have issues with empty...
Show data on mouseover of circle
...and you don't need the mousehandler. The code would be something like
vis.selectAll("circle")
.data(datafiltered).enter().append("svg:circle")
...
.append("svg:title")
.text(function(d) { return d.x; });
If you want fancier tooltips, you could use tipsy for example. See here for an ex...
Identity increment is jumping in SQL Server database
... the SQL Server.
The solution is:
Run SQL Server Configuration Manager.
Select SQL Server Services.
Right-click SQL Server and select Properties.
In the opening window under Startup Parameters, type -T272 and click Add, then press Apply button and restart.
...
Removing “NUL” characters
...id work was closely related:
Open your file in Notepad++
Type Control-A (select all)
Type Control-H (replace)
In 'Find What' type \x00
In 'Replace With' leave BLANK
In 'Search Mode' Selected 'Extended'
Then Click on 'Replace All'
...
How to get the insert ID in JDBC?
...or Oracle, you can invoke a CallableStatement with a RETURNING clause or a SELECT CURRVAL(sequencename) (or whatever DB-specific syntax to do so) directly after the INSERT in the same transaction to obtain the last generated key. See also this answer.
...
How to export DataTable to Excel
...tring[] columnNames = dataTable.Columns
.Cast<DataColumn>()
.Select(column => column.ColumnName)
.ToArray();
var header = string.Join(",", columnNames.Select(name => $"\"{name}\""));
lines.Add(header);
var valueLines = dataTable.AsEnumerable()
.Select(row => string.J...
When is localStorage cleared?
... three conditions are met: (a) user clears recent history, (b) cookies are selected to be cleared, (c) time range is "Everything"
In Chrome, localStorage is cleared when these conditions are met: (a) clear browsing data, (b) "cookies and other site data" is selected, (c) timeframe is "from beginnin...