How to separate objects which are present in a particular layer and
take XPO.
This is my take on a step by step procedure to achieve this.
Step 1. Create a model and move all the objects that you want to
move out of the layer.
Step 2. Create a project of this model and export the project as
an xpo.
Step 3. Backup the database and delete the old model created in
step 1
Step 4. Synchronize the database from the AOT. This will delete
the data but we will retrieve it later.
Step 5. Import the xpo from step 2
Step 6. Synchronize the database.
Step 7. Export this new model.
Step 8. Restore the database that was backed up from step 3
Step 9. Import the new model (step 7), Synchronize and compile
This restores the I’d values of the objects and tables / fields. So no data will be lost
This restores the I’d values of the objects and tables / fields. So no data will be lost
Step 10. Delete old model, compile / synchronize.
This should successfully move the code into the new layer and
you won’t loose any data.
2)Does hot fix and certified solution layers in AX 2009 have
patch layers?
A patch
is installed for Dynamics AX 2009 by clicking on axpatch.exe and following the
prompts from the installer. The *.cab file contains the Microsoft signed
.xpo as well as an .xml file which directs the installer to the appropriate
layer to patch.
The
folder named licenseterms contains the license terms used in the installer for
each of the supported languages. In the support folder the 24
languages for the patch installer are included as well as necessary files for
managing the import of a patch.
The
kbXXXXXX.txt file contains the affected objects including methods. This
is helpful in initial analysis to determine if the affected object has been
modified on your system in any other layer. After the initial analysis
the patch can be applied to a test system and the compare tool inside of
Dynamics AX can be used to analyze any changes that need to be made to merge
the patch into the environment before being deployed on the live system.
Additionally,
once an application patch has been applied a new class can be found in the
Application Object Tree (AOT) called SysHotFixManifest. This class will
contain a method with the KB Article number representing each patch applied to
the system. This is done to allow the tracking of patches deployed in AX
2009 as the application version cannot be incremented when using individual
patches.
In
summary, Dynamics AX 2009 can be patched via a Microsoft signed .xpo file in a
specific layer. This enables better tracing of installed patches as well
as isolating Microsoft code from customizations and third party
applications. The patches installed on an environment can be seen in the
SysHotFixManifest class and will appear as methods indicating each KB Article
applied.
For
additional information on patching Dynamics AX 2009 please see the Dynamics AX
2009Patching Whitepaper which has been published on
PartnerSource\CustomerSource.
What is the size of model element ID? Each object
in a particular layer has an ID. What is the size/length of it?
16
bit – ax 2009 object id
32 bit in ax 2012 object id
Not sure of model element ID
Which class/framework to use to show the
remaining time of a task.
SysOperationProgress
progress = new SysOperationProgress(3);
What is the use of Reverse engineering tool?
The Reverse Engineering tool enables you to visualize data and
classes in Microsoft Dynamics AX by creating UML data models, UML object
models, and ERX ER data models. This section provides an overview of the
reverse engineering features and explains how to create models using this tool.
What is LITERALSTR function?
Validates that the
specified string can be a literal string; if not, a compiler error occurs.
str literalStr(int str)
{
str s;
;
s =
literalStr("This is a literal str");
print s;
pause;
}
Difference between FIRSTONLY
and FIRSTFAST
First fast will fetch the first record fast
and then rest of record time taken by to
fetch the first fast and first only is same for the first record
Give an example using
conditional operator.
Arithmetic operator MOD. What is the return
value? Say 10 MOD 8.
Dynamics AX 2012 R3, Microsoft Dynamics AX
2012 ... mod. i = 100 mod21;.
Returns the remainder of the integer division of 100 by 21. i=16
Syntax of WINDOW
statement.
X++ provides a print statement that allows you to display text or selected results in
a temporary window. The messages are displayed in a Print window that appears when the first print statement is executed.
The print statement can be a convenient alternative to the Global::info method during testing. The info method displays text in the Infolog window.
The following table compares the print statement against the Global::info method.
How to get number of
affected records in set based operations like UPDATE_RECORDSET,
INSERT_RECORDSET & DELETE_FROM
update_recordset resembles delete_from in X++ and to UPDATE
SET in SQL. It
works on the database server-side on an SQL-style record set, instead of
retrieving each record separately by fetching, changing, and updating.
MyTable myTableBuffer;
;
update_recordset myTableBuffer
setting field1 = field1 * 1.10;
Is X++ case sensitive
language. If No, when it becomes case sensitive?
CLR types are case sensitive that is exception in ax 2012
What is the function to create DATETIME?
Syntax?
utcdatetime myUtc2 = 1988-07-20T13:34:45;
int iDay = DateTimeUtil ::day(1988-07-20T13:34:45)
Does X++ support multiple
inheritances?
Yes.
Interfaces are allowed as well, to get around multiple Inheritance.
n X++ an interface is a specification for a set of public
instance methods. To create an interface, you begin by using the AOT to create
a class. You edit the code of its classDeclaration node to replace the keyword class with the keyword interface. Then you
add methods to the interface just as you would for a class, except no code is
allowed inside the method bodies.
The purpose of interfaces is to define and enforce similarities
between unrelated classes without having to artificially derive one class from
the other.
Implements and extends
You can add the implements keyword on a class declaration, and this requires the class to declare the methods that are specified by the interface. A class declaration can implement multiple interfaces by listing them after the single occurrence of the implements keyword, with commas separating the interface names.
You can add the implements keyword on a class declaration, and this requires the class to declare the methods that are specified by the interface. A class declaration can implement multiple interfaces by listing them after the single occurrence of the implements keyword, with commas separating the interface names.
An interface can extend another interface by using the extends keyword. An interface cannot extend more than one interface.
Public
All interfaces are public regardless of whether you explicitly write the keyword public in front of the keyword interface in the classDeclaration. The methods on an interface are also public, and again the explicit inclusion of the keyword public is optional.
All interfaces are public regardless of whether you explicitly write the keyword public in front of the keyword interface in the classDeclaration. The methods on an interface are also public, and again the explicit inclusion of the keyword public is optional.
All interface methods that a class implements must be declared
with the explicit keyword public in the class. Also, a class that implements an interface must
also be declared with public.
How to make a class not
to be extended by other classes?
Final keyword
How to make a form modal?
In most cases CONSTRUCT method in a class
is PUBLIC. But in which case it should be PRIVATE?
Static Construct():
This method returns an instance of the class. It is a best
practice to have a construct method in your class. This method should always be
static but can be public or private depending upon the use. When calling a
class from another class or job construct method can be used for this
Example class for
Observer/Listener pattern?
For
example, you can look at listeners in unit testing framework, especially
SysTestResult class (and its methods addListener(), addFailure() and so on).
Difference between FIND
and EXISTS method in table.
Exist- faster, returns Boolean
Find-slower and returns table
What are the ways to
implement GO TO THE MAIN TABLE form functionality?
a)If u want to get go to main Table .Pls follow simple steps
Create a Menu Item for the form and Attach Particular
MenuItem as FormRef Property of Particular Table.
Eg:
Suppose if i want to display FormA(Using TableA) as Go to
Main Table in any other Form then i ll Create a Menu Item for FormA and i wll
Attach this MenuItem as FormRef in TableA Property.
b) normal relation to another table the option will come
automatically.
Difference between
ACTIVE, DELAYED, PASSIVE Link/Join Types in form DATASOURCE.
Active link type update the child data sources
without any delay when you select the parent table record. When you deal with
more records it will be affect application performance.
Delay form data source link type is also same
as active method the different is delay method won't update immediately when
you select the parent record. It will update the child data source when you
select the parent table, Ax use pause statement before update the child data
source. For example, if we are dealing with lot of records so, when the user
click or scroll the order, order details will update without any delay if we
use active method.
Passive form data source link type won't update
the child data source automatically. For example if we select the parent table
order then order details child data source won't update. If we need to update
the child data source we need to call the child data source execute query
method by program (code).
Outer join form data source link type will
return all parent records and matched child records. It will return all rows in
the parent table. Here, Order 4 doesn't has the child records (order details)
but it is populating in the order grid. It is the difference between inner join
and outer join
Inner
join form data source link type displays the rows that match with parent table
and child table. For example if the order doesn't has any order details then
the order will not be display.
Here,
Order 4 does not has the order details records, so it is not coming in the
order grid.
Exist join
Exist
join form data source link type return matched rows of the parent table. It
behaves like inner join but the different is once parent row matched with child
records then stop the process and update in the grid, Ax won't consider how
many records in child table for the parent row.
Notepad: example1. Your comments?
To show the query in a
dialog box, what method should be overridden?
What are OLAP and OLTP?
Explain with examples W.R.T AX
In a banking
System, you withdraw amount through an ATM. Then account Number, ATM PIN
Number, Amount you are withdrawing and Balance amount in account are
operational data elements.
An OLAP (On-line Analytical Processing) deal with Historical Data or
Archival Data, and it is characterized by relatively low volume of transactions. In
addition, the Queries needed for these systems are often very complex and
involve aggregations as for OLAP systems the response time is an effectiveness
measure.
Example: If we collect last 10 years data about
flight reservation, the data can give us much meaningful information such as
the trends in reservation. This may give useful information like peak time of
travel, and what kinds of people are traveling in the various classes available
(Economy/Business).
ource of data
|
Operational data; OLTPs are the original
source of the data.
|
Consolidation data; OLAP data comes from
the various OLTP Databases
|
Purpose of data
|
To control and run fundamental business
tasks
|
To help with planning, problem solving,
and decision support
|
What the data
|
Reveals a snapshot of ongoing business processes
|
Multi-dimensional views of various kinds
of business activities
|
Inserts and Updates
|
Short and fast inserts and updates
initiated by end users
|
Periodic long-running batch jobs refresh
the data
|
Queries
|
Relatively standardized and simple
queries Returning relatively few records
|
Often complex queries involving
aggregations
|
Processing Speed
|
Typically very fast
|
Depends on the amount of data involved;
batch data refreshes and complex queries may take many hours; query speed can
be improved by creating indexes
|
Space Requirements
|
Can be relatively small if historical
data is archived
|
Larger due to the existence of
aggregation structures and history data; requires more indexes than OLTP
|
Database Design
|
Highly normalized with many tables
|
Typically de-normalized with fewer
tables; use of star and/or snowflake schemas
|
Backup and Recovery
|
Backup religiously; operational data is
critical to run the business, data loss is likely to entail significant
monetary loss and legal liability
|
Instead of regular backups, some
environments may consider simply reloading the OLTP data as a recovery method
|
Use of CACHEADDMETHOD.
public void init()
{
super();
this.cacheAddMethod(tablemethodstr(VendTransOpen,
nextCashDiscDate));
this.cacheAddMethod(tablemethodstr(VendTransOpen,
nextCashDiscAmount));
}
To cache display methods perormance
When a class extends
RUNBASE, what should be the RUNON property and why?
TEMP TABLES – In which tier they will be
created.
TempDB - a new option in Ax 2012. They are
"physical" temporary tables held in the SQL Server database.
The new TempDB tables
operate in a similar manner to InMemory tables but support
more features from standard physical tables:
More powerful joins with
physical tables are possible, and are properly supported by the database
Can be per-company or
global
Support for normal tts transactions
Notepad: example2. How many database calls?
How can the code be written for better performance?
What are set-based
operations?
Allows you to
insert multiple records in one database trip. Use the RecordSortedList
construct when you
want a subset of data from a particular table, and when you want
it sorted in an
order that does not currently exist as an index.
|
|
Allows you to
insert multiple records in one database trip. Use the RecordInsertList
construct when you
do not need to sort the data.
|
|
Allows you to copy
multiple records from one or more tables directly into another
table on a single database trip.
|
|
Allows you to
update multiple rows in a table on a single database trip.
|
|
Allows you to
delete multiple records from the database on a single database trip.
|
What happens when we use
set-based operations on temporary tables?
The X++ SQL statement update_recordset enables you to update multiple rows in a single trip to the
server. This means that certain tasks may have improved performance by using
the power of the SQL server.
update_recordset resembles delete_from in
X++ and to UPDATE
SET in SQL. It
works on the database server-side on an SQL-style record set, instead of
retrieving each record separately by fetching, changing, and updating.
If the update method is overridden, the implementation falls back to a classic
looping construction, updating records one by one just as delete_from does for deletions. This also means that the construction works
on temporary tables, and whole-table-cached tables by using the looping
construction.
When the table is cached by using Entire table settings
When you set a table's CacheLookup property to EntireTable, all the
records in the table are placed in the cache after the first select. This type
of caching follows the rules of single record caching. This means that the SELECT statement WHERE clause must include equality tests on all fields of the unique
index that is defined in the table's PrimaryIndex property.
When is a set-based
operation downgraded to record-based operation?
Insert or the AOSvalidateInsert methods are
overridden on the target table
alert are set to be triggered by insert into target table
alert are set to be triggered by insert into target table
The database log is configured to
log insert into the target table
Record level security is enabled on the
target table , if the RLS is enabled on
source table then insert record set is not down graded by a row by row
operation
Validtimestatefield type property is set as
none as property for a table
Notepad: example3. Will RECORDINSERTLIST.ADD
(CUSTTABLE) insert record in DB?
{
RecordSortedList recordSortedList;
CustTable custTable;
;
recordSortedList = new RecordSortedList(tablenum(CustTable));
recordSortedList.sortOrder(fieldnum(custTable,AccountNum));
ttsbegin;
// Prepare record #1 for insertion.
custTable.AccountNum = '1000';
custTable.CreditMax = 10000.0;
recordSortedList.ins(custTable);
// Prepare record #2 for insertion.
custTable.AccountNum = '2000';
custTable.CreditMax = 500.0;
recordSortedList.ins(custTable);
// Prepare record #3 for insertion.
custTable.AccountNum = '3000';
custTable.CreditMax = 9999999.9;
recordSortedList.ins(custTable);
// All three records inserted in one database operation.
recordSortedList.insertDatabase();
ttscommit;
Notepad: example4. Which is the best type
and why?
Default cache
mechanism/type for AX system tables.
Not sure didn;t found the answer in net
What is the maximum
record limit for client and server cache? What happens when the maximum is
reached?
client cache is 100 records per table for a given
company.
. The maximum number of records maintained in a
server cache is 2,000 records per table for a given company.
To know whether a record is fetched from client cache, server
cache or database, use wasCached() of the TableBuffer used in Select.
select * from salesTable where salesTable.salesId == 'AR_2009';
info(strfmt("%1",salesTable.wasCached()));
Notepad: example5. Walkthrough the code and
explain.
Notepad: example6. We can update a record
with out transaction integrity check. How?
how to put a degbugger in sales form letter or in batch job????
what are the types of exception thrown in ax 2012???
what are the types of validation in ax 2012????
which method is called first validatewrite or modified field
ans: the validate write is always called first and then the modified field try putting a debugger in both the method and see changing the vaulue of the field you will come to know that first always validate write will get tr9iggered.
Question -why we can't filter display methods in ax ???
ans - When you filter data, AX adds an appropriate WHERE clause to the query to database. Because display methods don't exist in database, it's impossible to create such a WHERE clause. Therefore you can't filter by display methods.
Question: how many ways can you insert the data in container
Question:diffrence between List and set as collection class
Question: what are uses of titlefield1 and title field2 apart from displaying in the form header.
