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Send inline image in email
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How to create a multi-tenant database with shared table structures?
..., it looks like the shared-database, single-schema approach is the most suitable. The fact that you'll be storing just about 50Mb per tenant, and that there will be no per-tenant add-ons, makes this approach even more appropriate.
The MSDN article cited above mentions three security patterns that t...
Rails 4 LIKE query - ActiveRecord adds quotes
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def self.search(query, page=1)
query = "%#{query}%"
name_match = arel_table[:name].matches(query)
postal_match = arel_table[:postal_code].matches(query)
where(name_match.or(postal_match)).page(page).per_page(5)
end
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postgresql - sql - count of `true` values
In the above table, if I do :
10 Answers
10
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mysql error 1364 Field doesn't have a default values
My table looks like
16 Answers
16
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Default implementation for Object.GetHashCode()
...d it is common to also provide ==/!=operators, and often to implement IEquatable<T> too.
For generating the hash code, it is common to use a factored sum, as this avoids collisions on paired values - for example, for a basic 2 field hash:
unchecked // disable overflow, for the unlikely possi...
Query for documents where array size is greater than 1
... @Tobia my first use was $exists only but it actually use whole table scan so very slow. db.test.find({"name":"abc","d.5":{$exists:true},"d.6":{$exists:true}}) "nReturned" : 46525, "executionTimeMillis" : 167289, "totalKeysExamined" : 10990840, "totalDocsExamined" : 10990840, ...
Deleting Row in SQLite in Android
...tion, but I'm new to SQLite and I can't seem to figure this out. I have 1 table that has columns KEY_ROWID , KEY_NAME , KAY_LATITUDE , and KEY_LONGITUDE . I want the user to be able to select one and delete it; Can anyone give me a direction to start in? My question is in the actual deletion ...
SQL Server Escape an Underscore
...teral character, enclose the wildcard character in brackets. The following table shows several examples of using the LIKE keyword and the [ ] wildcard characters.
For your case:
... LIKE '%[_]d'
share
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convert_tz returns null
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This will happen if you haven't loaded the time zone table into mysql.
mysql_tzinfo_to_sql /usr/share/zoneinfo | mysql -u root -p mysql
mysql is the name of the built-in database that holds MySQL-specific configuration data.
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