In the above sql, if @param is '' then i don't want to include it in the where clause.I can use "like" statement for that, but i want exact value not partial value. can i use case in where clause so that if @param is '' then i will no...
Acaseexpression produces a scalar value, while you want to evaluate conditions. You can use ...
Can I use a COLLATE clause in a temp table definition? Can I use aggregate function within CASE? Can I use if statement in a table valued function? Can I use LEN or DATALENGTH in a WHERE clause? Can I use OUTER JOIN on 2 columns at the same time? Can row_number() work in UNION...
Writingcaseexpressions directly in SQL statements is fine for one-off logic. Often you’ll want to reuse this logic in many queries. Copy-pasting it into every statement is error-prone and hard to maintain. You can avoid these problems by moving the logic into the table definition withvirtua...
lead to performance issues. The SQL Server query optimizer will not be able to effectively use ...
I was searching for a good replacement for the case statement in where condition. I got it... Thank you very much for posting this logic... Thanks Nishad Stelban 2007-07-11re: WHERE clause logic Jeff, thank you; this was extremely helpful! I have a SQL Reporting Services report which...
SQL WHERE statement with Characters comparison By default, SQL Server performs case-insensitive searches. You can filter records from the table using the characters such as strings. For example, below, the query returns the records having product names specified in the where clause. ...
CASE can be used in any statement or clause that allows a valid expression. For example, you can use CASE in statements such as SELECT, UPDATE, DELETE and SET, and in clauses such as select_list, IN, WHERE, ORDER BY, and HAVING. Transact-SQL Syntax Conventions Syntax Copy Simple CASE...
The commands that system users execute in order to store and retrieve data can be entered at a terminal with an RDBMS interface by typing the commands, or entered through use of some type of graphical interface. The DBMS then processes the commands. Capabilities of the SELECT Statement...
This method uses a CASE statement on both sides of the clause, if the parameter is null value of 1 is used creating a 1=1 clause, if not null it creates a standard format where clause. A sample implementation is below. Use of CASE DECLARE @ColumnA VARCHAR(20) DECLARE @ColumnB ...