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SQL Server Insert if not exists
...akes no difference whatsoever because it's being used in an EXISTS clause. SQL Server will always optimize it and has been doing it for ages. Since I'm very old I usually write these queries as EXISTS (SELECT 1 FROM...) but it is not needed anymore.
– Loudenvier
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Cannot use a CONTAINS or FREETEXT predicate on table or indexed view because it is not full-text ind
I am getting following error in my SQL server 2008 R2 database:
7 Answers
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SQL Server add auto increment primary key to existing table
...ould recommend to always explicitly specify the seed and increment in your SQL scripts - especially for a larger site. It's just good practice.
– marc_s
Oct 28 '15 at 13:59
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Convert SQLITE SQL dump file to POSTGRESQL
I've been doing development using SQLITE database with production in POSTGRESQL. I just updated my local database with a huge amount of data and need to transfer a specific table to the production database.
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Where can I download english dictionary database in a text format? [closed]
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androidtech/wordnet20 is in SQL format not txt.
– DragonLord
Jun 11 '16 at 22:38
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What's the difference between IQueryable and IEnumerable
...t of as "is the 'Age' property > 18".
This allows things like LINQ-to-SQL to exist because they can parse the expression tree and convert it into equivalent SQL. And because the provider doesn't need to execute until the IQueryable is enumerated (it implements IEnumerable<T>, after all)...
Nested select statement in SQL Server
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SQL how to increase or decrease one for a int column in one command
...al ways to do this. Since you did not specify a database, I will assume MySQL.
INSERT INTO table SET x=1, y=2 ON DUPLICATE KEY UPDATE x=x+1, y=y+2
REPLACE INTO table SET x=1, y=2
They both can handle your question. However, the first syntax allows for more flexibility to update the record rath...
How to assign an exec result to a sql variable?
How do you assign the result of an exec call to a variable in SQL? I have a stored proc called up_GetBusinessDay , which returns a single date.
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optional parameters in SQL Server stored proc?
I'm writing some stored procs in SQL Server 2008, and wondered if the concept of optional input parameters is possible here?
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