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Display names of all constraints for a table in Oracle SQL
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You need to query the data dictionary, specifically the USER_CONS_COLUMNS view to see the table columns and corresponding constraints:
SELECT *
FROM user_cons_columns
WHERE table_name = '<your table name>';
FYI, unless you specifically created your table w...
How to add images in select list?
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2020 now and still no way to do this.
– Wingsuit
Apr 7 at 4:20
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find() with nil when there are no records
...ckoverflow.com/a/26885027/1438478 for the new way to find an item by a specific attribute.
– Fralcon
Mar 26 '15 at 20:58
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Regex: ignore case sensitivity
...ion for your language/platform/tool to find how the matching modes are specified.
If you want only part of the regex to be case insensitive (as my original answer presumed), then you have two options:
Use the (?i) and [optionally] (?-i) mode modifiers:
(?i)G[a-b](?-i).*
Put all the variations (...
ACE vs Boost vs POCO [closed]
...and Adaptive Communication Environment (ACE) framework . I would like to know the good and bad of each.
10 Answers
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Architecture for merging multiple user accounts together
...I don't care about the user's email, name, or birth date - I just want to know they're the person who has been logging into this account all along.)
The third-party identities contain information relevant only to authenticating with a third-party. For OAuth, this typically means a user identifier ...
How to check which version of v8 is installed with my NodeJS?
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Best answer to know. Also, NPM's CLI is a whackadoo-- if you add an argument onto this, it will increment the version in your package.json file, make and tag a git commit. Utterly bizarre UX, but this is useful.
– mitchell_st
Mar 2 '17 at 1...
How do I write LINQ's .Skip(1000).Take(100) in pure SQL?
...vided you make sure you avoid the sort (the ORDER BY condition can be satisified by an index).
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What are the options for storing hierarchical data in a relational database? [closed]
...ierarchy and use Nested Sets to query the hierarchy.
The problem up until now has been that the coversion method from an Adjacecy List to Nested Sets has been frightfully slow because most people use the extreme RBAR method known as a "Push Stack" to do the conversion and has been considered to be ...
Why should a function have only one exit-point? [closed]
...y a single exit point - you have a single path through the method and you know where to look for the exit. On the minus side if you use indentation to represent nesting, your code ends up massively indented to the right, and it becomes very difficult to follow all the nested scopes.
Another is that...