Sql Indexing Best Practices How To Make Your Database Faster

Sql Indexing Best Practices How To Make Your Database Faster Yes; microsoft themselves recommend using <> over != specifically for ansi compliance, e.g. in microsoft press training kit for 70 461 exam, "querying microsoft sql server", they say "as an example of when to choose the standard form, t sql supports two “not equal to” operators: <> and !=. the former is standard and the latter is not. Sql server: (infix operator), concat ( vararg function ) edit : now azure sql also supports ansi sql standard || operator for string concatenation. docs link.

Sql Indexing Best Practices Speed Up Your Queries Ai2sql Io Which of these queries is the faster? not exists: select productid, productname from northwind products p where not exists ( select 1 from northwind [order details] od where p. The case statement is the closest to if in sql and is supported on all versions of sql server. select cast( case when obsolete = 'n' or instock = 'y' then 1 else 0 end as bit) as saleable, * from product you only need to use the cast operator if you want the result as a boolean value. if you are happy with an int, this works: select case when obsolete = 'n' or instock = 'y' then 1 else 0 end. What are the practical differences between coalesce() and isnull(,'')? when avoiding null values in sql concatenations, which one is the best to be used? thanks!. Which one: datetime datetime2 is the recommended way to store date and time in sql server 2008 ? i'm aware of differences in precision (and storage space probably), but ignoring those for now, is.

Sql Indexing Best Practices Speed Up Your Queries Ai2sql Io What are the practical differences between coalesce() and isnull(,'')? when avoiding null values in sql concatenations, which one is the best to be used? thanks!. Which one: datetime datetime2 is the recommended way to store date and time in sql server 2008 ? i'm aware of differences in precision (and storage space probably), but ignoring those for now, is. I have written my own windows service which interacts with a sql database and updates it. the service was running fine and seems to be functioning correctly, however of late it seems to go down at. If we use sql server management studio to get rid of the identity value on column "id", a new temporary table is created, the data is moved to the temporary table, the old table is dropped and the new table is renamed. use management studio to make the change and then right click in the designer and select "generate change script". In ms sql server database, use this query to get the tables and respective column names that contains the input text: select t.name as tablename, c.name as columnname. How do you return 1 value per row of the max of several columns: tablename [number, date1, date2, date3, cost] i need to return something like this: [number, most recent date, cost] query?.