SQL WITH clause example - Stack Overflow
Sep 23, 2012 · 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 table.
sql server - Query comparing dates in SQL - Stack Overflow
Apr 12, 2013 · Applications that use other APIs, or Transact-SQL scripts, stored procedures, and triggers, should use the unseparated numeric strings. For example, yyyymmdd as 19980924. EDIT. Since you are using ADO, the best option is to parameterize the query and pass the date value as a date parameter.
Recursive query in SQL Server - Stack Overflow
Jan 25, 2013 · To give an example let's say. If A is matching B and B is Matching C then three rows should go to group table in format (A, A), (A, B), (A, C) I have tried looking into co-related subqueries and CTE, but not getting this to implement. I need to do this all in SQL. Thanks for the help . You can use a recursive CTE.
SQL query to select dates between two dates - Stack Overflow
Feb 26, 2011 · best query for the select date between current date and back three days: select Date,TotalAllowance from Calculation where EmployeeId=1 and Date BETWEEN DATE_SUB(CURDATE(), INTERVAL 3 DAY) AND CURDATE() best query for the select date between current date and next three days:
How do I perform an IF...THEN in an SQL SELECT?
Sep 15, 2008 · See working demo: if then without case in SQL Server. For start, you need to work out the value of true and false for selected conditions. Here comes two NULLIF: for true: ISNULL(NULLIF(p.[Instock], 'Y'), 1) for false: ISNULL(NULLIF(p.[Instock], 'N'), 0) combined together gives 1 or 0. Next use bitwise operators.
How do I create a parameterized SQL query? Why Should I?
More subtle and damaging queries are possible as well. Here's an example of how you do parameters with Sql Server: Public Function GetBarFooByBaz(ByVal Baz As String) As String. Dim sql As String = "SELECT foo FROM bar WHERE baz= @Baz". Using cn As New SqlConnection("Your connection string here"), _.
SQL Server Linked Server Example Query - Stack Overflow
Nov 3, 2010 · The following solution worked: In SSMS, go to Server Objects > Linked Servers > Providers > MSDASQL. Ensure that "Dynamic parameter", "Level zero only", and "Allow inprocess" are all checked. You can then query any schema and table using the following syntax: SELECT TOP 10 *.
database - How to select unique records by SQL - Stack Overflow
Option 4: Common Table Expression with ROW_NUMBER () In the Common Table Expression (CTE), select the ROW_NUMBER (), partitioned by the group column and ordered in the desired order. Then SELECT only the records that have ROW_NUMBER() = 1: WITH CTE AS (. SELECT *. ,row_number() OVER(PARTITION BY word, num ORDER BY id) AS row_num. FROM dupes.
Using RegEx in SQL Server - Stack Overflow
Jan 19, 2012 · 133. I'm looking how to replace/encode text using RegEx based on RegEx settings/params below: RegEx.IgnoreCase = True. RegEx.Global = True. RegEx.Pattern = "[^a-z\d\s.]+". I have seen some examples on RegEx, but confused as to how to apply it the same way in SQL Server. Any suggestions would be helpful.
sql - Finding even or odd ID values - Stack Overflow
Nov 11, 2011 · select CITY from STATION as st where st.id % 2 = 0. Will fetch the even set of records. In order to fetch the odd records with Id as odd number. select CITY from STATION as st where st.id % 2 <> 0. % function reduces the value to either 0 or 1. edited Aug 1, 2017 at 15:43. answered Aug 1, 2017 at 15:03. Neha Chopra.