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Tomcat: How to find out running tomcat version
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edited Feb 6 '19 at 8:19
Svetlin Zarev
8,72433 gold badges3939 silver badges6767 bronze badges
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How to rename a single column in a data.frame?
I know if I have a data frame with more than 1 column, I can use
20 Answers
20
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Delete all tags from a Git repository
I want to delete all the tags from a Git repository. How can I do that?
11 Answers
11
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What does mysql error 1025 (HY000): Error on rename of './foo' (errorno: 150) mean?
...the column name, but instead you would have to find the name used to index it. To find that, issue the following select:
SHOW CREATE TABLE region;
This should show you the name of the index, something like this:
CONSTRAINT region_ibfk_1 FOREIGN
KEY (country_id) REFERENCES
country (id) ...
Cartesian product of multiple arrays in JavaScript
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2020 Update: 1-line (!) answer with vanilla JS
Original 2017 Answer: 2-line answer with vanilla JS:
(see updates below)
All of the answers here are overly complicated, most of them take 20 lines of code or even more.
This example uses just two lines of vani...
How to have stored properties in Swift, the same way I had on Objective-C?
I am switching an application from Objective-C to Swift, which I have a couple of categories with stored properties, for example:
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How to bind an enum to a combobox control in WPF?
...een tries to add nice looking display strings but I don't want that complexity.
18 Answers
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Using pg_dump to only get insert statements from one table within database
... for a way to get all rows as INSERT statements from one specific table within a database using pg_dump in PostgreSQL.
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How do I find where JDK is installed on my windows machine?
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Updated the answer with Linux/Unix/Mac OS X and Windows examples.
– Pablo Santa Cruz
Jan 13 '11 at 14:32
129
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Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '=
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AND productUsers.productID = rProductID;
END
Option 3: add it to the IN parameter definition:
CREATE PROCEDURE updateProductUsers(
IN rUsername VARCHAR(24) COLLATE utf8_unicode_ci, -- COLLATE added
IN rProductID INT UNSIGNED,
IN rPerm VARCHAR(16))
BEGIN
UPDATE produc...