Apr 14, 2011 · 11 In SQL, anything you evaluate / compute with NULL results into UNKNOWN This is why SELECT * FROM MyTable WHERE MyColumn != NULL or SELECT * FROM MyTable WHERE MyColumn <> NULL gives you 0 results. To provide a check for NULL values, isNull function is provided. Moreover, you can use the IS operator as you used in the third query.

Nov 8, 2013 · In My Query one place some other developer using <> (angle brackets) What does it mean ? sb.append (" AND nvl (VoidFlag, 'N') <> 'Y' ");

May 9, 2017 · What does ":" stand for in a query? A bind variable. Bind variables allow a single SQL statement (whether a query or DML) to be re-used many times, which helps security (by disallowing SQL injection attacks) and performance (by reducing the amount of parsing required). How does it fetch the desired value? Before a query (or DML) is executed by Oracle, your …

Sep 18, 2008 · Is it possible to use an IF clause within a WHERE clause in MS SQL? Example: WHERE IF IsNumeric(@OrderNumber) = 1 OrderNumber = @OrderNumber ELSE OrderNumber LIKE '%' + @

I have a query that is gathering information based on a set of conditions. Basically I want to know if a location has paid out more than $50 for the day OR the comment section has the word "filter...

Sep 23, 2012 · 353 The SQL WITH clause was introduced by Oracle in the Oracle 9i release 2 database. The SQL WITH clause allows you to give a sub-query block a name (a process also called sub-query refactoring), which can be referenced in several places within the main SQL query. The name assigned to the sub-query is treated as though it was an inline view or ...

Nov 2, 2015 · Using SQL Server, how do I split a string so I can access item x? Take a string "Hello John Smith". How can I split the string by space and access the item at index 1 which should return "John"?

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

In SQL Server 2005 I have a table cm_production that lists all the code that's been put into production. The table has a ticket_number, program_type, program_name and push_number along with some ot...

In SQL Server 2000 and 2005: what is the difference between these two WHERE clauses? which one I should use on which scenarios? Query 1: SELECT EventId, EventName FROM EventMaster WHERE EventDate