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I am selecting a value from wordpress database but I am having an error, I saw on many websites before and on this forum but nothing helped.
SELECT `meta_value`
FROM `wp_usermeta`
WHERE `meta_key`=`wp_capabilities`
AND `user_id` = 1;
Unknown column 'wp_capabilities' in 'where clause'
instead of wp_capabilities (`) you need to use 'wp_capabilities' ('). Please try this:
SELECT `meta_value`
FROM `wp_usermeta`
WHERE `meta_key`='wp_capabilities'
AND `user_id` = 1;
the column you want is configured with the roles and capabilities of wordpress. if you don't have it, maybe something was configured wrong when you installed wordpress. here you can read more about it.
https://wordpress.org/support/article/roles-and-capabilities/
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How can I find data that dont end with letter 'g' without using NOT LIKE function, please help
select * from table where right(column, 1) != 'g'
Since you asked how to do it using "not like," I'll answer that. The function version provided by #Zoories would be more efficient.
This works at w3schools.com
SELECT * FROM Customers where CustomerName not like '%g';
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I got a task that i need to know how can i put WHERE clause inside the SELECT statement (like SELECT .... WHERE.... FROM...) . hope you guys could help me. thank you :)
'Where' is used to filter the data based on a condition.
The general syntax is:-
SELECT column1, column2, ...
FROM table_name
WHERE condition;
Here you can get a better overview.
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can someone please check if this is correct?
Not sure if my answer to Q6 is correct, I am not sure if the group_by I am using is right or not, the rest I think is ok
Thanks
You are close. You need to:
Use COUNT() instead of SUM().
There's no need to use the HAVING clause.
Optionally, you can add aliases to the columns, so they become easier to read.
Your query should look like:
select a.author_id, count(*) as titles, sum(b.quantity_ordered) as units
from a join b on a.book_id = b.book_id
group by a.author_id
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this is the query :
SELECT COUNT(*)
FROM public.member_roles , public.members , public.users
WHERE public.users.id = public.members.user_id AND public.members.id = public.member_roles.member_id AND public.member_roles.role_id = 4 ;
in my views if this query return 1 , a text area is ganna be disabled
in rails
ActiveRecord::Base.connection.execute(your_sql_here)
you can find more info on this question. Hope this help you.
this will return Mysql2::Result object (if you are using mysql db and mysql2 gem. I belive for PG also it give similar object. to fetch data from it. here is a docs for Mysql2::Result.
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Team,
I need a sql query or function which will create the mirror image of string.
Thanks
Rajeev
If "mirror" is reversed text use:
SELECT REVERSE('my_text') FROM dual;
EDIT:
SqlFiddleDemo
SELECT t
,REVERSE(t) AS Mirror1
,TRANSLATE(t, 'abcdefghijklmnopqrstuvwxyz',N'ɐqɔpǝɟbɥıظʞןɯuodbɹsʇnʌʍxʎz') AS Mirror2
,TRANSLATE(REVERSE(t), 'abcdefghijklmnopqrstuvwxyz',N'ɐqɔpǝɟbɥıظʞןɯuodbɹsʇnʌʍxʎz') AS Mirror3
FROM tab;