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How to avoid variable substitution in Oracle SQL Developer with 'trinidad & tobago'
When I try to execute this statement in Oracle SQL Developer 2.1 a dialog box "Enter Substitution Variable" pops up asking for a replacement value for TOBAGO ,
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Is there documentation for the Rails column types?
...tatype your database of choice requires (i.e. serial primary key in postgreSQL). Its use is somewhat complicated and not recommended.
Use model and migration constraints (like validates_uniqueness_of and add_index with the :unique => true option) instead to simulate primary key functionality on o...
What is the use of the @Temporal annotation in Hibernate?
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how I can store in MySql DB in the format as yyyy-MM-dd
– Shantaram Tupe
Feb 10 '17 at 6:54
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How do I escape reserved words used as column names? MySQL/Create Table
...d one problem is a class may have a field name key which is a reserved MySQL keyword. How do I escape it in a create table statement? (Note: The other problem below is text must be a fixed size to be indexed/unique)
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How can I select from list of values in SQL Server
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Available only on SQL Server 2008 and over is row-constructor in this form:
You could use
SELECT DISTINCT * FROM (VALUES (1), (1), (1), (2), (5), (1), (6)) AS X(a)
Many wrote about, among them:
[MS official] https://docs.microsoft.com/en...
Count(*) vs Count(1) - SQL Server
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In SQL Server, these statements yield the same plans.
Contrary to the popular opinion, in Oracle they do too.
SYS_GUID() in Oracle is quite computation intensive function.
In my test database, t_even is a table with 1,000,000...
How to request a random row in SQL?
... request a random row (or as close to truly random as is possible) in pure SQL?
28 Answers
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What's the best way to store co-ordinates (longitude/latitude, from Google Maps) in SQL Server?
I'm designing a table in SQL Server 2008 that will store a list of users and a Google Maps co-ordinate (longitude & latitude).
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SQL Case Sensitive String Compare
... collation, though the collations themselves are vendor-specific. Is yours SQL Server syntax?
– onedaywhen
Oct 20 '10 at 9:24
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Avoid duplicates in INSERT INTO SELECT query in SQL Server
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In MySQL you can do this:
INSERT IGNORE INTO Table2(Id, Name) SELECT Id, Name FROM Table1
Does SQL Server have anything similar?
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