Update query using Subquery in Sql Server
you can join both tables even on UPDATE statements, SQLFiddle Demo for faster performance, define an INDEX on column marks on both tables. using SUBQUERY SQLFiddle Demo
sql-server
How to implement LIMIT with SQL Server? [duplicate]
Starting SQL SERVER 2005, you can do this… or something like this for 2000 and below versions…
CASE IN statement with multiple values
Yes. You need to use the “Searched” form rather than the “Simple” form of the CASE expression
Filter data based on date in sql
Since you have not mentioned about any errors, if START_DATE and END_DATE are DATETIME data type, there is nothing wrong with your query. If you are not getting the correct records, Please check the data. However your date format may trouble you in a different server. There are some good practices you could adhere to … Read more
SUM OVER PARTITION BY
You could have used DISTINCT or just remove the PARTITION BY portions and use GROUP BY: Not sure why you are dividing the total by the count per BrandID, if that’s a mistake and you want percent of total then reverse those bits above to:
INSERT VALUES WHERE NOT EXISTS
You could do this using an IF statement: You could do it without IF using SELECT Both methods are susceptible to a race condition, so while I would still use one of the above to insert, but you can safeguard duplicate inserts with a unique constraint: Example on SQL-Fiddle ADDENDUM In SQL Server 2008 or later you can use MERGE with HOLDLOCK to remove the … Read more
“select * into table” Will it work for inserting data into existing table
You should try Have a look at INSERT and SQL SERVER – Insert Data From One Table to Another Table – INSERT INTO SELECT – SELECT INTO TABLE
SQL Server – An expression of non-boolean type specified in a context where a condition is expected, near ‘RETURN’
That is invalid syntax. You are mixing relational expressions with scalar operators (OR). Specifically you cannot combine expr IN (select …) OR (select …). You probably want expr IN (select …) OR expr IN (select …). Using union would also work: expr IN (select… UNION select…)
Append table to an existing one: SQL Server
The basic form is: This may not work if, for instance, you have a unique constraint on the columns and the insert violates this constraint. This assumes that you actually want to add the rows to the table. If you just want to see the results together: EDIT: The goal seems to be to add columns one tableB. … Read more
SHOWPLAN permission denied in database ‘tempdb’. in sql server 2008
Get an admin to run the following in the tempdb: where <UserName> is your username.