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MySql Table Insert if not exist otherwise update
...ould not change. You do need to include all of the other columns from your table. You can use the VALUES() function to make sure the proper values are used when updating the other columns.
Here is your update re-written using the proper INSERT ... ON DUPLICATE KEY UPDATE syntax for MySQL:
INSERT I...
Simplest way to do a recursive self-join?
...is the simplest way of doing a recursive self-join in SQL Server? I have a table like this:
5 Answers
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Distinct in Linq based on only one field of the table
...am trying to use .distinct in Linq to get result based on one field of the table (so do not require a whole duplicated records from table).
...
For each row return the column name of the largest value
...partment name, rather than the number of roster counts, from the frequency table. A simple example below (column names = departments, row names = employee ids).
...
Generate class from database table
How can I generate a class from a SQL Server table object?
26 Answers
26
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In a bootstrap responsive page how to center a div
...http://getbootstrap.com/dist/css/bootstrap.css');
html, body, .container-table {
height: 100%;
}
.container-table {
display: table;
}
.vertical-center-row {
display: table-cell;
vertical-align: middle;
}
<script src="http://cdnjs.cloudflare.com/ajax/libs/twitter-bootst...
MySQL Fire Trigger for both Insert and Update
...ossible to fire a mysql trigger for both the insert and update events of a table?
3 Answers
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Is the primary key automatically indexed in MySQL?
...m/doc/refman/5.5/en/optimizing-primary-keys.html
The primary key for a table represents the column or set of columns
that you use in your most vital queries. It has an associated index,
for fast query performance
For MySQL 5.0 reference see: http://dev.mysql.com/doc/refman/5.0/en/mysql-ind...
Google Chrome Printing Page Breaks
...g to spec break-after and break-before apply only to block-level elements, table row groups, table rows (but see prose): drafts.csswg.org/css-break-3/#break-between – that means no floats or any fancy positioning tricks.
– Mikko Rantalainen
Jun 2 '16 at 11:27...
Limiting the number of records from mysqldump?
...atabase
Of course, that would give you the first million rows from every table.
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