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mysql check collation of a table
...ry INFORMATION_SCHEMA.TABLES and get the collation for a specific table:
SELECT TABLE_SCHEMA
, TABLE_NAME
, TABLE_COLLATION
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_NAME = 't_name';
that gives a much more readable output in contrast to SHOW TABLE STATUS that contains a lot of irreleva...
Slicing of a NumPy 2d array, or how do I extract an mxm submatrix from an nxn array (n>m)?
I want to slice a NumPy nxn array. I want to extract an arbitrary selection of m rows and columns of that array (i.e. without any pattern in the numbers of rows/columns), making it a new, mxm array. For this example let us say the array is 4x4 and I want to extract a 2x2 array from it.
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Loading local JSON file
...
If you want to let the user select the local json file (anywhere on the filesystem), then the following solution works.
It uses uses FileReader and JSON.parser (and no jquery).
<html>
<body>
<form id="jsonFile" name="jsonFile" enctype=...
MySQL OPTIMIZE all tables?
...>.<your_table>;, optimize all tables in a given schema like this: select concat('OPTIMIZE NO_WRITE_TO_BINLOG TABLE ',table_schema,'.',table_name,';') into outfile '/tmp/optimize_all_tables.sql' from information_schema.tables where table_schema = 'pabeta' and table_type = 'base table'; sourc...
Image resizing client-side with JavaScript before upload to the server
...ed in a script tag)
You can use it as follows:
<input type="file" id="select">
<img id="preview">
<script>
document.getElementById('select').onchange = function(evt) {
ImageTools.resize(this.files[0], {
width: 320, // maximum width
height: 240 // maximum heigh...
Check if a string is null or empty in XSLT
...
How can I translate <xsl:for-each select="root/*[matches(name(.), 'grp')]"> so it can be used in VS2010?
– Si8
Oct 28 '15 at 17:21
...
Why am I getting “Unable to find manifest signing certificate in the certificate store” in my Excel
...the Project's properties page, click on Signing tab and either
Click on Select from store
Click on Select from file
Click on Create test certificate
Once either of these is done, you should be able to build it again.
sh...
Update a column value, replacing part of a string
...
Try using the REPLACE function:
mysql> SELECT REPLACE('www.mysql.com', 'w', 'Ww');
-> 'WwWwWw.mysql.com'
Note that it is case sensitive.
share
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impr...
UITextView that expands to text using auto layout
...nt(equalTo: safeArea.trailingAnchor)
])
To do this in Interface Builder, select the text view, uncheck Scrolling Enabled in the Attributes Inspector, and add the constraints manually.
Note: If you have other view/s above/below your text view, consider using a UIStackView to arrange them all.
...
c++11 Return value optimization or move? [duplicate]
...e object to be copied is designated by an lvalue, overload resolution to
select the constructor for the copy is first performed as if the object were designated by an rvalue. If overload
resolution fails, or if the type of the first parameter of the selected constructor is not an rvalue referenc...