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Prepare Your SAP HANA Database Project for Collaboration

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Prepare Your SAP HANA Database Project for Collaboration
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Prepare Your SAP HANA Database Project for Collaboration

October 19, 2021
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October 19, 2021
Create HDBROLEs and synchronize your SAP HANA Database Project with Git to prepare your project for collaboration.

You will learn

  • How to create an HDBROLE with grant options
  • How to create an HDBROLE without grant options
  • How to create a new repository and token in GitHub
  • How to connect your development project to GitHub
  • How to add a remote origin via HTTPS connection
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Prerequisites

  • You need to complete the previous tutorial about changing data structures using HDBTABLE and HDBMIGRATIONTABLE Objects.
  • Make sure your instance of SAP HANA Cloud, SAP HANA database is running.

Are you wondering what the best way is to manage changing data structures? Do you want to know how to collaborate more efficiently when working in development projects?

To answer the first question, learn what benefits different table types in SAP HANA Cloud, SAP HANA database can offer you based on your needs. The following 3 tutorials in this tutorial group will help you navigate through your challenges with the managing data structures:

  1. Get started to collaborate in SAP Business Application Studio
  2. Import data into a table in SAP HANA Database Project
  3. Change data structures using HDBTABLE and HDBMIGRATIONTABLE objects

  4. To answer the second question, create template projects that help you set up service connections, handle synonyms and prepare authorization management. You can create these templates once in the beginning and give your project team members a head-start. Using the template, they can build on your work and can quickly start working productively. The following 4 tutorials in this tutorial group will help you learn how to collaborate efficiently:

  5. You are here Prepare your SAP HANA Database Project for collaboration

  6. Generate users and roles for assigning privileges
  7. Enhance your project with services, synonyms and grants
  8. Collaborate on an SAP HANA Database Project template

This tutorial will show you how to prepare your SAP HANA Database Project for collaboration.


Step 1: Create a role with grant option

Now that you know the difference between hdbtable and hdbmigration table objects when changing data structures, we need to prepare some rights for the next tutorials. In this tutorial, you will create roles with specific permissions to give other users access to these tables. This is necessary, e.g., for creating calculation views, which you will do in the last tutorial.

First, we want to create a role that contains SELECT privileges with grant option, which means when someone is assigned this role, they can grant this privilege to others themselves.

  1. From the explorer panel on the left side of SAP Business Application Studio, expand the folders under your project WS3_1.

  2. Select the src folder and press F1 key or click on View – Find Command at the top of the screen to open a search prompt. Enter HANA in the field and from the dropdown list of functionalities, choose SAP HANA: Create SAP HANA Database Artifact.

  3. In the window for creating a new SAP HANA Database Artifact, click on the folder icon in the first field. Navigate to your project, the src folder, and then click on Open.

  4. Select the artifact type as Role (hdbrole).

    Create hdbrole
  5. Under ‘Specify the artifact name’ option enter the name inventory_with_grant.

  6. The database version should be HANA Cloud, by default. Without making any further changes, click on Create.

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Step 2: Assign privileges to the role with grant option
  1. A new file inventory_with_grant.hdbrole can be seen under the src folder in the EXPLORER panel. Click on this role file to open the Role Editor window.

  2. Click on Edit for the Role name. Rename it as inventory_with_grant#.

    Edit hdbrole name

    IMPORTANT

    The ‘#’ character at the end of the role name is necessary to create this role. Whenever you create roles with grant or admin options, they need to have a ‘#’ character at the end of the role name.

  3. Next, click on the tab Object Privileges. In the column Object Name, click on the Explorer Icon icon in the first row.

  4. A wizard will open with all the objects available to you to select from. Since we have only created one object so far, the only object available is the table INVENTORY. Click on it to select it.

  5. In the column Privileges with Grant Option, click on the arrow where it says Choose privileges to select from a list of privileges with grant option that you want to assign to this role.

    Privileges with grant
  6. Check the SELECT privilege.

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Step 3: Create a second role without grant option

Now you will create a new role having privileges without the grant option. Repeat the steps from the previous step with a few modifications:

  1. When creating the object, under ‘Specify the artifact name’ enter the name inventory_without_grant.

  2. Once the file inventory_without_grant.hdbrole can be seen under the src folder in the explorer panel, open this role file in the Role Editor.

    Explorer view of new hdbrole
  3. Again, in the tab Object Privileges, in the field Object Privileges, select the table INVENTORY .

  4. In the column Privileges, click on the arrow where it says Choose privileges to select from a list of privileges that you want to assign to this role.

    Privileges
  5. Check the SELECT privilege.

  6. Now that both roles are created, you can deploy both files individually or deploy the whole project by clicking on the Deploy Icon deploy icon in the SAP HANA Projects panel. Once you see in the terminal that the project was deployed successfully, you can continue.

These roles will be used in the last tutorial to share calculation views among different users.

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Step 4: Create a new repository in GitHub

When collaborating with others on development projects, pushing your files to a git repository is very helpful. In this last section, we will establish a connection to GitHub, create a new repository and sync our development project with the repository.

  1. Open https://github.com/ on a new browser tab. Enter your GitHub account using your credentials.

  2. On the top right corner of the screen, click on the profile icon in the top right corner and select Your repositories.

  3. In the top right corner, click on New to create a new repository.

    New Git repository
  4. Under Create a new repository, enter WS3_1 as the Repository name.

  5. Optionally, you can add a short description.

  6. You can choose to make your repository visible publicly or privately. In this case, it is recommended that you select the option Private.

  7. Click on Create repository to finish. Your first step is done, and you have an empty repository ready to have the content from your development project.

    Create repository
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Step 5: Generate a GitHub token

There are two ways of connecting to a GitHub project: SSH and HTTPS. SSH requires you to use your GitHub password and HTTPS requires the use of a token. We recommend using HTTPS for higher security. In this step we will create a GitHub token that can be used to connect to git.

  1. On the top right corner of the screen, click on your GitHub profile icon and choose Settings.

  2. Scroll down the Settings page to find Developer settings on the left side of the screen and select it.

  3. In Developer Settings, select Personal access tokens.

  4. Click on Generate new token at the top right corner of the screen. You will be asked to sign in using your GitHub account password.

    Generate tokens
  5. After signing in, enter a name for the token (for example: MyNewToken) under the caption Note.

    My new token
  6. Next you can select an expiration date.

  7. Under Select scopes, you can select both repo and notifications. Click on Generate token to complete generation.

  8. Copy the new token you generated and paste it in a safe location that could be accessed later.

    Token

CAUTION

After you proceed to the next step, you cannot go back to view the token again unless you have saved it in another location. In such a case, you will need to generate a new token.

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Step 6: Connect your development project to GitHub
  1. Go back to SAP Business Application Studio.

  2. On the left menu, click on the Source Control Icon icon to go to the Source Control panel. Here, you can see all the recent updates to your project that have not been pushed to GitHub yet. In this panel, you can also administer your GitHub connection and changes from a menu instead of using the terminal.

    Git icon
  3. Open a terminal by clicking on Terminal at the top navigation bar and select Open Terminal.

  4. Paste the following command in the terminal and hit Enter.

    git init
    
    Git initialized

    This will initialize the empty Git repository.

  5. Type first commit in the Message box under the Source Control panel. Click on the tick mark icon at the top of the panel to stage all your changes and commit them.

    first commit
  6. Select Yes or Always, if you encounter a message box asking what action to take when the commit (tick mark) icon is selected.

You have now committed all the changes made to the data structures during this session. Next, you will add the remote origin and push the staged changes to your repository.

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Step 7: Add a remote origin via HTTPS connection
  1. Go to the terminal and paste the following command. Before you hit Enter, replace with your GitHub username and with your GitHub repository name. (in this case for example: WS3_1)

    git remote add origin https://github.com/<Username>/<Repository name>.git
    
  2. After making the changes, press Enter.

  3. Paste the following command into the terminal and press Enter.

    git fetch
    
  4. A prompt will open at the top center of the screen.

  5. There, enter your Git username and press Enter.

    Git username for connection
  6. Next, paste the token you had generated from GitHub in the prompt and press Enter.

  7. You may save these credentials for future use by selecting the option to do so.

  8. Paste the following command into the terminal and press Enter.

    git push -u origin master
    
    Git push objects

    This pushes all the committed changes to the GitHub repository.

You can go back to your GitHub repository and verify that all the folders of your project are present in it.

You have successfully completed the fourth tutorial. In the next tutorial, you will generate users and roles for assigning privileges necessary for collaborating on the project.

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Step 8: Test yourself
Which of the following statements is/are true?
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