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SAP Basis Articles
Page 40 of 50
Use of Persistence layer in SAP HANA
SAP Persistence layer is required in the following scenarios −In any database, main memory is volatile therefore data is lost during a restart or when a power outage occurs.Data needs to be stored in persisted medium.Backup & Restore is available.It ensures that the database is restored to the most recent committed state after a restart and that transaction are either completely executed or completely undone.
Read MoreUsing column base tables in SAP HANA Calculation view with Star Join
It does not allow base column tables, Attribute Views or Analytic views to add at data foundation. All Dimension tables must be changed to Dimension Calculation views to use in Star Join. All Fact tables can be added and can use default nodes in Calculation View.For more details, you can refer our tutorial link −https://www.tutorialspoint.com/sap_hana/sap_hana_calculation_view.htmYou have four tables, two Dim tables, and two Fact tables. You have to find list of all employees with their Joining date, Emp Name, empId, Salary and Bonus.This can be achieved using Calculation view with Star Join. You need to convert column based tables to ...
Read MoreChanging language in Text join in SAP HANA
To change the language, go to Additional Properties tab in Database user logon and change the language as shown below −
Read MoreUsing Text join in SAP HANA Modeling
To create an Attribute view, you have to navigate to Content tab → Package → New → Attribute ViewYou can select any of view type to implement a Text join in HANA.Add both the tables to Data Foundation and in Join type select Text join as shown below −Next is to save and activate Attribute view and text join is used.
Read MoreChanging default schema in SQL console in SAP HANA
To change the default schema, you have to select schema name from Catalog folder and click on SQL tab at the top.You can also right click on Schema in which you want to create Relational objects and select Open SQL Console. In below pic, you can see the Schema AA_HANA11 and right click → Open SQL Console.At the top of SQL console, you can see Schema name where the objects will be created using this console.
Read MoreGranting _SYS_REPO with SELECT to user schema in SAP HANA
In SAP HANA system _SYS_REPO user is required to create run time objects that are saved in HANA database under _SYS_BIC schema. When you activate modeling views in HANA, SYS REPO provides the read access to users on these modeling views. That is why it is required to grant _SYS_REPO with SELECT with GRANT privilege to user schemas.GRANT SELECT ON SCHEMA "SCHEMA_NAME" TO _SYS_REPO WITH GRANT OPTIONThis is required when you use objects of a table/view of a schema to build HANA Modeling Views. You need to grant _SYS_REPO the SELECT WITH GRANT privilege on this schema.
Read MoreRefreshing a schema after creating a table in SAP HANA database
Let us say you have executed the below create table SQL statement in HANA database −Create Table Demo_HANA ( ID INTEGER, NAME VARCHAR(10), PRIMARY KEY (ID) );To check the table in HANA database, navigate to AA_HANA11 schema and right click and refresh (F5). Navigate to “Table” folder and you can see new table with name Demo_HANA is created.
Read MoreInserting data in a table in SAP HANA
To insert the data, you need to run the Insert statement in SQL editor. “Demo_HANA” is table name.Insert into Demo_HANA Values (1,'John'); Insert into Demo_HANA Values (2,'Anna'); Insert into Demo_HANA Values (3,'Jason'); Insert into Demo_HANA Values (4,'Nick');In SQL editor, add INSERT statements and execute (F8) as below −
Read MoreChanging storage type of table in SAP HANA database
You can also convert a Column store table to a Row store table or a Row store table to Column store table using ALTER table command.Alter table "AA_HANA11"."DEMO_HANA" column;
Read MoreDevelopment Perspective in SAP HANA Studio
You have different ABAP and Java Perspectives to perform application development and to host applications on HANA system −ABAPABAP Connectivity and IntegrationABAP ProfilingJavaJava BrowsingJava EEJava Type HierarchyJava ScriptThese perspective can be opened by navigating to, navigate to Window option at the top → Perspective → Open Perspective → Other
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