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Smart Data Access under Provisioning tab allows you to access and analyze the data stored in other database systems without replicating the data into HANA database. Data replication process is always time consuming and requires memory storage. Smart Data Access allows you to create virtual tables which are linked to remote system tables and data can be directly accessed in SAP HANA system with these virtual tables.You can manipulate these virtual tables and run SQL statements- SELECT, INSERT and UPDATE and even Join is permissible between virtual and local tables. When a JOIN is applied on virtual tables, SAP HANA ... Read More
There is a database named test in the list of databases displayed by the statement SHOW DATABASES. We can use test database but the main disadvantage is that anything created in this database can be removed/changed by anyone else with access to it. To avoid this we should take permission from MySQL administrator to use a database of our own. For taking permission following command must be run − mysql> grant all on tutorial.* to root@localhost; Query OK, 0 rows affected (0.10 sec) In the above command, I am taking permission for the tutorial database. Root is the ... Read More
To manage software updates and patch management in HANA system environment, you should install SAP Host Agent on all the machines that are part of SAP system landscape. SAP Host Agent is used by Software Update Manager to install the software patches on all the component servers in your system landscape.
Often, you will want to cycle through the elements in a collection. For example, you might want to display each element.The easiest way to do this is to employ an iterator, which is an object that implements either the Iterator or the ListIterator interface.Iterator enables you to cycle through a collection, obtaining or removing elements. ListIterator extends Iterator to allow bidirectional traversal of a list and the modification of elements.Before you can access a collection through an iterator, you must obtain one. Each of the collection classes provides an iterator() method that returns an iterator to the start of the ... Read More
Following are the various constructors provided by the StringBuilder class.S.N.Constructor & Description1StringBuilder()This constructs a string builder with no characters in it and an initial capacity of 16 characters.2StringBuilder(CharSequence seq)This constructs a string builder that contains the same characters as the specified CharSequence.3StringBuilder(int capacity)This constructs a string builder with no characters in it and an initial capacity specified by the capacity argument.4StringBuilder(String str)This constructs a string builder initialized to the contents of the specified string.
In MySQL, a user-defined variable defined by one client cannot be seen or used by another client because user-defined variables are connection-specific. It means that all variables for a given client connection are automatically freed when that client exits
In MySQL, it is not possible that a client can hold user variable permanently. It is because all the variables for a given client connection are automatically freed when that client exits.
LM structure in SAP HANA system landscape is used to manage installation details of all the components under HANA. LM structure information helps to manage software updates and patches. The information with LM structure is used by Software Update Manager SUM to install the software updates and new releases in HANA environment.
remove(int index) − Removes the element at position index from the invoking list and returns the deleted element. The resulting list is compacted. That is, the indexes of subsequent elements are decremented by one. removeRange(int fromIndex, int toIndex) − Removes all of the elements whose index is between fromIndex, inclusive and toIndex, exclusive. removeAll(Collection c) − Removes from this list all of its elements that are contained in the specified collection (optional operation).
This is used to update versions of HANA Studio to newer versions. Studio Repository maintains the code to perform updates for HANA Studio.All the objects that you develop are maintained in Packages which are maintained under SAP HANA Repository. These packages are arranged in the form of hierarchy to make them easy to understand and logical.