I am now working on sharepoint CAML query. to fetch out item by a given name from a huge resources library which full of images, documents, videos and so on.
I didn't know whether sharepoint index the Name column. I'm thinking to use nested query to make this query faster.
My question here is:
How does sharepoint query work? execute the outer layer first, or start from the inner layer?
I wanna to filter the ResourceType(Image,Document..) first. then filter the category and finally fetch out the items match the name.Is the query bellow work just like what i need?
<Where>
<And>
<Eq><FieldRef Name='IR_ResourcesType' />
<Value Type='Text'>Image</Value></Eq>
<And>
<Eq><FieldRef Name='IR_Category' />
<Value Type='Text'>All</Value>
</Eq>
<Eq>
<FieldRef Name='FileLeafRef' />
<Value Type='File'>aaa</Value>
</Eq>
</And>
</And>
</Where>
If you can, try indexing one of the unique columns in your list so you can use it later on for querying in your where clause.
As best practice, we should also just get the columns that we will be using so as to not have a data buffet. You can limit the columns you will be displaying by using viewFields.
Here is a link which shows some tips and tricks for CAML in conjunction with SPServices which I think you might find useful.
Related
I'm using a CAML query to grab some items from a list. It pulls the items into a datatable which is then set as the datasource of a gridview control.
Everything worked fine until I realized it was using the ID field to sort the items. I wanted to sort by the field Target_x0020_Id, so I ordered the order by, however it doesn't change the behavior when I added this.
This is my query:
WhereEqFieldRefName='Target_x0020_Id' Value Type='Text'900/Value/EqWhereOrderByFieldRef Name='Target_x0020_Id'/FieldRef/OrderBy
The only thing I added was the orderby element. (Sorry I'm having some issues posting the code without it trying to render in the post)
I can only assume this is the CAML you're using
<Where>
<Eq>
<FieldRefName='Target_x0020_Id'>
<Value Type='Text'>900</Value>
</Eq>
<Where>
<OrderBy>
<FieldRef Name='Target_x0020_Id'></FieldRef>
</OrderBy>
I see three glaring errors.
There's a missing space between FieldRef and Name in the <Eq> portion of the caml.
The closing <where> is missing the forward slash.
The FieldRef tag in <OrderBy> is incorrect. It's self closing
This should be the right caml
<Where>
<Eq>
<FieldRef Name='Target_x0020_Id'>
<Value Type='Text'>900</Value>
</Eq>
</Where>
<OrderBy>
<FieldRef Name='Target_x0020_Id' />
</OrderBy>
I do see that you're returning all items where Target_x0020_Id is equal to 900 and then sorting all those items by Target_x0020_Id. Since this field is always 900, your sort isn't going to work.
Also, is Target_x0020_Id really a text field? If it's numeric, you should chagne the type to 'Number' instead of 'Text'.
I'm using CAML Query to pull items from a list.
I tried re-arranging the structure of my query, and still would not return anything. I try not to use CAMLQuery Builder (doing it manually).
<Query>
<Where>
<And>
<Contains>
<FieldRef Name="Field1"/><Value Type="Text">A</Value>
</Contains>
<And>
<In>
<FieldRef Name="Field2"/><Values><Value Type="Text">B</Value></Values>
</In>
<Or>
<In>
<FieldRef Name="Field3"/><Values><Value Type="Text">C</Value></Values>
</In>
<In>
<FieldRef Name="Field4"/><Values><Value Type="Text">D</Value></Values>
</In>
</Or>
</And>
</And>
</Where>
</Query>
Note: I have seen questions that may seem as a duplicate of this, but have never seen a question go as deep as this level of branching. CAML Query seems to be particular in where you put your closing tags.
Did I nest my "And" and "Or" incorrectly? What could be wrong/missing in this query?
While your CAML appears valid to me (without actual <FieldRef> and <Value> elements, I can't specifically test your field names, types & values), I tend to write my CAML in a more "balanced" fashion, as such:
<Query>
<Where>
<And>
<And>
<Contains>A</Contains>
<In>B</In>
</And>
<Or>
<In>C</In>
<In>D</In>
</Or>
</And>
</Where>
</Query>
According to the spec, both your posted version & my answer here would net the same result, but I would test to confirm. If the above doesn't work, brevity aside, I'd suggest posting your full CAML so that we can recreate your List with the same field names & types and test data with matching values.
I'm creating an iOS app that queries a Sharepoint Webservice with GetListItems. I'm able to retrieve all of the records, but there are a lot of records > 4000. Is there a way I can retrieve 50 at a time?
I'm using SOAP for this by the way.
Assuming you're passing a CAML query to the webservice, you ca use a rowlimit tag
<Query>
<!-- your current query here -->
<RowLimit>100</RowLimit>
</Query>
EDIT
To retrieve a subset of values you could do something like this
<Query>
<Where>
<And>
<Geq>
<FieldRef Name='ID'/>
<Value Type='Counter'>0</Value>
</Geq>
<Lt>
<FieldRef Name='ID'/>
<Value Type='Counter'>100</Value>
</Lt>
</And>
</Where>
</Query>
I haven't tested this, but it should work. Of course, you're going to want to change the values in your code to retrieve the particular subset.
I am writing an internal API for my company which allows users to pass in SharePoint CAML query.
In side my function I take to user's query, and add some additional elements to it and then use the final query to retrieve required data from SharePoint.
Example:
User passes in:
<Query>
<Where>
<Eq>
<FieldRef Name='Category' />
<Value Type='Choice'>Bug</Value>
</Eq>
</Where>
</Query>
Internally, I modify the query to be:
<Query>
<Where>
<And>
<Eq>
<FieldRef Name='Category' />
<Value Type='Choice'>Bug</Value>
</Eq>
<Eq>
<FieldRef Name='AssignedTo' />
<Value Type='Integer'><UserID /></Value>
</Eq>
</And>
</Where>
</Query>
What do you think is the best way to validate queries sent by users?
If the queries that you're going to allow are fairly restricted, it might be a good approach to build a schema to represent what a valid query would be. Then you could just see if their xml is valid according to that schema. Also, I know that you can use the CAML Builder dll from code. I can't find an example of this right away, but there may be a way to use it's CAML building methods in a try/catch block to stop invalid queries from ever getting built.
Also, it occurs to me that you may need to watch out for the fact that the CAML query's FieldRef will need to be built using the internal name of the field which may differ from the display name.
I'm using caml query to select all documents which were modified or added by user. Query runs recursively on all subsites of specified site collection.
Now problem is I can't get rid of folders which are also part of result set. For now I'm filtering them from result datatable. But I'm wondering: Is it possible to filter out folders from result set just by using caml?
This CAML actually does the trick:
<Where>
<Eq>
<FieldRef Name='FSObjType' />
<Value Type='Integer'>0</Value>
</Eq>
</Where>
that will not give you any folders.
So, i figured it out :)
You can use FieldRef='ContentType' in your caml query and specify typr of content type which you want to select or exclude from select.
So in my case I've added this condition to my caml expression:
<Neq><FieldRef Name='ContentType' /><Value Type='Text'>Folder</Value></Neq>
NOTE:
There are problems in multi language setup. Name of content type can be different, so it is good to get names of content types from resources
UPDATE:
It looks like I was too quick in my assumptions. I need to filter out all contett types based on folder content type, because in our projects such content types are used :(
I was not able to create workable query in caml, so I added view field element to my query which selects ContentTypeId of list item and I filter-out rows which are based on folder content type.
Code to do this is trivial, but it bothers me that such simple task cannot be done by pure caml.
If you're working with folders and you're using an SPQuery object you also may want to use the ViewAttributes field to allow for recursive item retrieval. Setting the value to Scope="Recursive" will retrieve items from subfolders and will not retrieve the folder objects in the result set.
myQuery.ViewAttributes = "Scope=\"Recursive\"";
According to the output from CAML Designer (created by Karine Bosch and Andy Van Steenbergen and distributed by the Belux Information Worker User Group) the correct CAML syntax is:
<Where>
<Eq>
<FieldRef Name='FSObjType' />
<Value Type='Integer'>0</Value>
</Eq>
</Where>
<QueryOptions>
<ViewAttributes Scope='RecursiveAll' />
</QueryOptions>
I tested this in PowerShell and got the expected result:
$qry = new-object Microsoft.SharePoint.SPQuery
$qry.Query = "<Where><Eq><FieldRef Name='FSObjType' /><Value Type='Integer'>0</Value></Eq></Where><QueryOptions><ViewAttributes Scope='RecursiveAll' /></QueryOptions>"
$items = $lib.GetItems($qry)
$items.Count
You can replace the <QueryOptions> tag in the CAML with the SPQuery object property ViewAttributes if you prefer, ie $qry.ViewAttributes = “Scope=’RecursiveAll’".
When testing this be sure to re-instantiate the SPQuery object each time as you cannot simple reassign the Query property. Once the query has been executed, any new value assigned to the Query property is ignored. So execute the entire PowerShell fragment.
Dave T.'s answer didn't work for me but taking it as an inspiration here's what I came up with:
<Where>
<BeginsWith><FieldRef Name="ContentTypeId" />
<Value Type="ContentTypeId">0x0101</Value>
</BeginsWith>
</Where>
The main problem is that we can only know ContentTypeId on a site level, because when a content type gets added to a list/library it becomes a list content type and its ID is appended with another GUID (0x010100...). And there's no NotBeginsWith condition in CAML, so we can not filter out folders, but we can include documents only which site content type id is 0x0101.
The solutions with FSObjType field don't work for me because I have libraries with far more files than a threshold so all the fields in the query must be indexed and I haven't found a way to index this field.
This is what worked for me
<Where>
<Eq>
<FieldRef Name='FSObjType' />
<Value Type='Number'>1</Value>
</Eq>
</Where>
Check my other answer CAML query that includes folders in result set
Simply changing the operators might get you what you need
<Where>
<NotIncludes>
<FieldRef Name='ContentTypeId' />
<Value Type='ContentTypeId'>0x0120</Value>
</NotIncludes>
</Where>
I'm not sure if that'll work.
For me also it worked as written below:-
<Where><Eq><FieldRef Name='FSObjType' /><Value Type='Integer'>1</Value></Eq></Where>