Inserting Results from a Stored Procedure Call to a Table

-

This is handy, bumped into this and I thought it would be nice to take note and share.

What this code illustrate is that you can basically use a stored procedure's result and insert it into a table and do your own query.

Now why do we want to do that? Say for example the existing query does something and is being used by different modules and touching it would require us to check/test those modules that has a dependency on the  SP.

Applying the sample below allows us to just reuse the existing SP and get the resulting data and do our own filters, grouping etc..


 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
DECLARE @Table TABLE(
        SPID INT,
        Status VARCHAR(MAX),
        LOGIN VARCHAR(MAX),
        HostName VARCHAR(MAX),
        BlkBy VARCHAR(MAX),
        DBName VARCHAR(MAX),
        Command VARCHAR(MAX),
        CPUTime INT,
        DiskIO INT,
        LastBatch VARCHAR(MAX),
        ProgramName VARCHAR(MAX),
        SPID_1 INT,
        REQUESTID INT
)

INSERT INTO @Table EXEC sp_who2

SELECT  *
FROM    @Table
WHERE ....

The code above shows a built-in stored procedure sp_who2 being called and inserted to a table variable and was selected. sp_who2 BTW, shows all the sessions that are currently established in the database, this sp is normally used to diagnose system slow down.

Comments

Post a Comment

Popular posts from this blog

Serializing JSON string to ExpandoObject

-
In some case you want to create and Object from JSON, a great way of doing this to deserialize this JSON to an ExpandoObject. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 /// <summary> /// Convert Json String to an Expando Object /// </summary> /// <param name="that">Json string to convert</param> /// <returns>Expando Object</returns> public static ExpandoObject ToExpando ( this string that) { ExpandoObject result; try { result = JsonConvert.DeserializeObject<ExpandoObject>(that, new ExpandoObjectConverter()); } catch (Exception e) { throw e; } return result; } Here we use JsonConvert.DeserializeObject, you need to add reference to NewtonSoft.Json see below. 1 2 3 using Newtonsoft.Json ; using Newtonsoft.Json.Converters ; using Newtonsoft.Json.Linq ;
Read more

XML to ExpandoObject using Recursion in C#

-
Here's how to convert XML to an ExpandoObject using recursion. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 public static dynamic ToExpando ( this XDocument document) { return CreateExpando (document.Root); } private static dynamic CreateExpando (XElement element) { var result = new ExpandoObject() as IDictionary< string , object >; if (element.Elements().Any(x => x.HasElements)) { var list = new List<ExpandoObject>(); result.Add(element.Name.ToString(), list); foreach ( var childElement in element.Elements()) { list.Add(CreateExpando(childElement)); } } else { foreach ( var leafElement in element.Elements()) { result.Add(leafElement.Name.ToString(), leafElement.Value); } } return result; } Happy Coding!
Read more

Automatically Discover and Assign Parameter with Values to a Stored Procedure Call in C#

-
I'm sure most programmers have run across a situation wherein they have to pass  a lot of parameters to a stored procedure call in C#. Instead of manually typing each parameter in and assigning a value, why not develop a way to automatically discover the parameter, add it to the parameter list of the command object and assign the corresponding value from an entity or model. Here's my implementation using extension method. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 /// <summary> /// Automatically assigns parameters to Command.Parameter Collection from List of parameter names /// </summary> /// <param name="that">Command object being extended</param> /// <param name="model">Expando model</param> /// <param name="conn">sQLConnection used to g...
Read more