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.

Public Class MSSQLDB ' CREATE YOUR DB CONNECTION 'Change the datasource Public SQLSource As String = "Data Source=someserver\sqlexpress;Integrated Security=True" Private DBCon As New SqlConnection(SQLSource) ' PREPARE DB COMMAND Private DBCmd As SqlCommand ' DB DATA Public DBDA As SqlDataAdapter Public DBDT As DataTable ' …

Apr 27, 2012 · These pages will show you more about how to query XML in T-SQL: Querying XML fields using t-sql. Flattening XML Data in SQL Server. EDIT. After playing with it a little bit more, I ended up with this amazing query that uses CROSS APPLY. This one will search every row (role) for the value you put in your like expression... Given this table ...

Jan 25, 2013 · Sample of the Recursive Level: DECLARE @VALUE_CODE AS VARCHAR(5); --SET @VALUE_CODE = 'A' -- Specify a level WITH ViewValue AS ( SELECT ValueCode , ValueDesc , PrecedingValueCode FROM ValuesTable WHERE PrecedingValueCode IS NULL UNION ALL SELECT A.ValueCode , A.ValueDesc , A.PrecedingValueCode FROM …

Aug 24, 2017 · The reason I go with df.query() is in cases where I don't want to rewrite the dataframe name. This is common during exploratory data analysis when I might have lots of dataframes I want to run the same stuff on and sticking to method chaining like .query() let's me simply swap the variable at the beginning of the chain. –

Apr 10, 2013 · If you are using SQL Server 2005+, then you can use the PIVOT function to transform the data from rows into columns. It sounds like you will need to use dynamic sql if the weeks are unknown but it is easier to see the correct code using a hard-coded version initially. First up, here are some quick table definitions and data for use:

Feb 2, 2011 · UPDATE: It looks like with SQL SERVER 2005 missing EXEC keyword is creating problem. So to allow it to work with all SQL SERVER versions I updated my answer and added EXEC in below line. List<Sample> x = this.Database.SqlQuery<Sample>(" EXEC usp_NextNumberBOGetMulti @TableName, @FieldName", param).ToList();

Mar 30, 2013 · SQL server with a known number worked beautifully. With an unknown number dynamic sql I get a couple of errors: Msg 1038, Level 15, State 4, Line 15 An object or column name is missing or empty. For SELECT INTO statements, verify each column has a name. For other statements, look for empty alias names. Aliases defined as "" or [] are not allowed.

Oct 4, 2013 · But that SQL query doesn't work: Msg 2396, Level 16, State 1, Line 2 XQuery [Sqm.data.query()]: Attribute may not appear outside of an element. I've hunted, and it's amazing how poorly documented, or exampled, Xml querying is. Most resources rather than querying a table, query a variable; which I'm not doing. Most resources only use xml ...

Jun 26, 2014 · The read_sql docs say this params argument can be a list, tuple or dict (see docs).. To pass the values in the sql query, there are different syntaxes possible: ?, :1, :name, %s, %(name)s (see PEP249).