Previously Ive wrote about design and implementation an UPSERT with SSIS.UPSERT is about Update existing records, and Insert new records.SQLIS The Execute SQL Task.In this article we are going to take you through the Execute SQL Task in SQL Server Integration Services for SQL Server 2.SQL Server 2. 00.E9GuagTr8/UcDnuluY8jI/AAAAAAAAB18/2uLMQ0EVK74/s1600/9_1.gif' alt='Ssis Package Insert Or Update Oracle' title='Ssis Package Insert Or Update Oracle' />Experts Exchange Questions SQL server 2008 how to Audit oldnew columns value through after Insertupdate delete trigger.This list contains all of the known Microsoft Knowledge Base articles, howtos, fixes, hotfixes, webcasts and updates of Microsoft SQL Server 2005 starts with letter F.Pointers for when to use TSQL or SSIS when doing ETL.We will be covering all the essentials that you will need to know to effectively use this task and make it as flexible as possible.The things we will be looking at are as follows The properties of the Task.After looking at these introductory topics we will then get into some examples.The examples will show different types of usage for the task Returning a single value from a SQL query with two input parameters.Returning a rowset from a SQL query.Executing a stored procedure and retrieveing a rowset, a return value, an output parameter value and passing in an input parameter.PNG' alt='Ssis Package Insert Or Update Oracle' title='Ssis Package Insert Or Update Oracle' />Passing in the SQL Statement from a variable.Passing in the SQL Statement from a file.Tour Of The Task.Before we can start to use the Execute SQL Task in our packages we are going to need to locate it in the toolbox.Lets do that now.Whilst in the Control Flow section of the package expand your toolbox and locate the Execute SQL Task.Below is how we found ours.Now drag the task onto the designer.As you can see from the following image we have a validation error appear telling us that no connection manager has been assigned to the task.This can be easily remedied by creating a connection manager.There are certain types of connection manager that are compatable with this task so we cannot just create any connection manager and these are detailed in a few graphics time.Double click on the task itself to take a look at the custom user interface provided to us for this task.The task will open on the general tab as shown below.Take a bit of time to have a look around here as throughout this article we will be revisting this page many times.Whilst on the general tab, drop down the combobox next to the Connection.Type property. In here you will see the types of connection manager which this task will accept.As with SQL Server 2.DTS, SSIS allows you to output values from this task in a number of formats.Have a look at the combobox next to the Resultset property.The major difference here is the ability to output into XML.If you drop down the combobox next to the SQLSource.Type property you will see the ways in which you can pass a SQL Statement into the task itself.We will have examples of each of these later on but certainly when we saw these for the first time we were very excited.Next to the SQLStatement property if you click in the empty box next to it you will see ellipses appear.Click on them and you will see the very basic query editor that becomes available to you.Alternatively after you have specified a connection manager for the task you can click on the Build Query button to bring up a completely different query editor.This is slightly inconsistent.Once youve finished looking around the general tab, move on to the next tab which is the parameter mapping tab.We shall, again, be visiting this tab throughout the article but to give you an initial heads up this is where you define the input, output and return values from your task.Note this is not where you specify the resultset.If however you now move on to the Result.Set tab this is where you define what variable will receive the output from your SQL Statement in whatever form that is.Property Expressions are one of the most amazing things to happen in SSIS and they will not be covered here as they deserve a whole article to themselves.Watch out for this as their usefulness will astound you.For a more detailed discussion of what should be the parameter markers in the SQL Statements on the General tab and how to map them to variables on the Parameter Mapping tab see Working with Parameters and Return Codes in the Execute SQL Task.Task Properties. There are two places where you can specify the properties for your task.One is in the task UI itself and the other is in the property pane which will appear if you right click on your task and select Properties from the context menu.We will be doing plenty of property setting in the UI later so lets take a moment to have a look at the property pane.Below is a graphic showing our properties pane.Now we shall take you through all the properties and tell you exactly what they mean.A lot of these properties you will see across all tasks as well as the package because of everythings base structure The Container.Bypass. Prepare. Should the statement be prepared before sending to the connection manager destination TrueFalse Connection.This is simply the name of the connection manager that the task will use.We can get this from the connection manager tray at the bottom of the package.Delay. Validation.Really interesting property and it tells the task to not validate until it actually executes.A usage for this may be that you are operating on table yet to be created but at runtime you know the table will be there.Description. Very simply the description of your Task.Disable. Should the task be enabled or not You can also set this through a context menu by right clicking on the task itself.Disable. Event. Handlers.As a result of events that happen in the task, should the event handlers for the container fire Exec.Value. Variable. The variable assigned here will get or set the execution value of the task.Expressions. Expressions as we mentioned earlier are a really powerful tool in SSIS and this graphic below shows us a small peek of what you can do.We select a property on the left and assign an expression to the value of that property on the right causing the value to be dynamically changed at runtime.One of the most obvious uses of this is that the property value can be built dynamically from within the package allowing you a great deal of flexibility Fail.Package. On. Failure.If this task fails does the package Fail.Parent. On. Failure.If this task fails does the parent container A task can he hosted inside another container i.For Each Loop Container and this would then be the parent.Forced. Execution.Value. This property allows you to hard code an execution value for the task.Forced. Execution.Value. Type. What is the datatype of the Forced.Execution. Value Force.Execution. Result.Force the task to return a certain execution result.This could then be used by the workflow constraints.Possible values are None, Success, Failure and Completion.Force. Execution.Value. Should we force the execution result Isolation.Level. This is the transaction isolation level of the task.Is. Stored. Procedure.Certain optimisations are made by the task if it knows that the query is a Stored Procedure invocation.The docs say this will always be false unless the connection is an ADO connection.Locale. IDGets or sets the Locale.ID of the container.Logging. Mode. Should we log for this container and what settings should we use The value choices are Use.Parent. Setting, Enabled and Disabled.Maximum. Error. Count.How many times can the task fail before we call it a dayName.Very simply the name of the task.Result. Set. Type.How do you want the results of your query returned The choices are Result.Set. TypeNone, Result.Set. TypeSingle. Row, Result.Set. TypeRowset and Result.Set. TypeXML. Sql.Statement. Source.Your QuerySQL Statement.Sql. Statement. Source.Type. The method of specifying the query.Your choices here are Direct. Keygen For Traktor Dj 3 Torrent . Input, File. Connection and Variables Time.Out. How long should the task wait to receive results Transaction.Option. How should the task handle being asked to join a transaction Usage Examples.As we move through the examples we will only cover in them what we think you must know and what we think you should see.This means that some of the more elementary steps like setting up variables will be covered in the early examples but skipped and simply referred to in later ones.All these examples used the Aventure.Works database that comes with SQL Server 2.Returning a Single Value, Passing in Two Input Parameters.So the first thing we are going to do is add some variables to our package.The graphic below shows us those variables having been defined.Here the Count. Of.Employees variable will be used as the output from the query and End.Date and Start. Date will be used as input parameters.As you can see all these variables have been scoped to the package.Scoping allows us to have domains for variables.Each container has a scope and remember a package is a container as well.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
November 2017
Categories |