Oracle Sql Tutorial [UPDATED] Download

Duration: 2 hours

Intended Audience: Everyone

Objectives:

Create an APEX application based on a sample dataset Learn how to temporarily manage the shopping cart using APEX Collections Learn how to add pages to manage the shopping cart from scratch

See just how easily you can build a shopping cart app using the database objects that you created in this tutorial.

Rather than utilizing apex.oracle.com, another option is to install Oracle VM Virtual Box and install Oracle Database 23c Free - Developer Release VirtualBox Appliance. This option allows you to work on your laptop without needing internet connectivity.

Oracle Sql Tutorial Download

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When you create a user with the CREATE USER statement, the user's privilege domain is empty by default. The administrator assigns privileges to the user based on the tasks that the user may perform in the future. In this tutorial, the ONLINE_SHOPPE user establishes a session, creates a table, and writes DML statements against tables. Execute the following statements to assign the required privileges to the ONLINE_SHOPPE user:

Our Oracle tutorial includes all topics of Oracle database such as insert record, update record, delete record, select record, create table, drop table etc. There are also given Oracle interview questions to help you better understand the Oracle database.

Our tutorial will start with the basics of Oracle such as how to retrieve and manipulate data. Then we will move to the more advanced topics such as how to create tables, functions, procedures, triggers, tablespaces, and schemas. We will conclude with a review of the functions that are proprietary to Oracle.

In a WebLogic Server domain, machines can be defined to represent physical computers that host one or more Oracle WebLogic Server instances. Machine definitions help WebLogic Server choose backup servers for session replication. Machine definitions also include WebLogic Node Manager configuration.

This tutorial shows you how to create and configure machines by using the Oracle WebLogic Server 12c (12.2.1) administration console.

A WebLogic Server cluster consists of multiple managed servers running simultaneously, running the same applications, and working together to provide increased scalability and reliability. A cluster appears to a client as one WebLogic Server instance. Web application client requests go to the cluster proxy, which passes those requests to one of the servers in the cluster. A cluster proxy can be a web server, a hardware load balancer, or even another instance of WebLogic Server itself. The managed servers that make up a cluster can run on the same machine or on different machines. For increased reliability, managed servers in a cluster typically run on more than one machine.

This tutorial shows you how to use the Oracle WebLogic Server 12c (12.2.1) administration console to create a basic cluster and add servers to it. Additional tutorials extend this cluster's capabilities to support load balancing and failover of Java Platform, Enterprise Edition applications.

A Java web application, like any Java EE application, can be deployed to an application server as an archive file. Web application archives use the .war file extension.

This tutorial covers using the Oracle WebLogic Server 12c (12.2.1) administration console to deploy a simple Java EE web application. You learn how to start and run the application, redeploy an updated version of the application, and undeploy the application.

This tutorial shows you how to generate an initial deployment plan for an existing web application, edit the deployment plan, and then use the WebLogic Server Administration Console to redeploy your application with that plan.

With WLST, you can monitor, control, and configure servers and other domain resources from the command line. You can also save groups of commands in files so that you can reliably perform the same tasks many times.

This tutorial introduces you to WLST. It gives you a chance to practice basic commands and to change server attributes from the command line.

This tutorial describes how WebLogic logging services provide facilities for writing, viewing, filtering, and listening for log messages. These log messages are generated by WebLogic Server instances, subsystems, and Java EE applications that run on WebLogic Server or in client JVMs.

This tutorial uses a mock credit score API as the data source and provides a foundation to create an oracle for any type of data. Just alter the code to query data from whatever source you need, a REST API, for example.

The Mina roadmap includes zkOracles to allow a zkApp to consume data trustlessly from any HTTPS data source. The oracle design described in this tutorial is typically operated by the zkApp developer. The oracle fetches and signs the desired data, and then a zkApp can consume this data and verify the signature to ensure that the data was provided by the expected source.

Data providers can also operate response signers like the one described to provide users with an oracle that does not require them to trust an intermediary. In other words, if a credit score or other data provider chooses to sign response data themselves, users can consume data from that source without trusting anybody besides the data provider they already trust to provide correct data.

You can adapt this code to create oracles for other API sources. For example, if you want your smart contract to ingest price feed data from an exchange, query the exchange API, sign the results, and return a response in the following response format.

The following example is a response from the oracle for the user with an id of 1. In the real world, this id might be a social security number or a similar identifier. Notice that the data property contains their credit score and user id.

The smart contract stores the public key for the oracle that you retrieve data from as on-chain state. This makes the public key available when end users run the smart contract. The smart contract then uses this public key to verify the signature of the data to confirm it came from the expected source.

These assert methods create a constraint that makes it impossible for users to generate a valid zero-knowledge proof unless their condition is met. Without a valid zero-knowledge proof (or a signature) it's impossible to generate a valid Mina transaction. Users can call the smart contract method and send a valid transaction only if they have a valid signature from the expected oracle and a credit score 700 or above.

We recommend getting started with CellOracle using the provided demo dataset.When you want to apply CellOracle to your own scRNA-seq or scATAC-seq dataset, please refer to the following tutorials to learn how to prepare input data.

This tutorial assumes that you have adequate Python programming experience. In particular, we assume you are familiar with the following python data science libraries: jupyter, pandas, and matplotlib.

Also, this tutorial assume that you are familiar with basic scRNA-seq data analysis. In particular, we assume you basic understanding of scRNA-seq analysis using Scanpy and Anndata , which is a python toolkit for single-cell analysis.

Using these tutorials, you can easily start CellOracle analysis with this dataset.You can reproduce hematopoiesis network analysis and perturbation simulation results that are shown in our bioRxiv preprint .

This tutorial creates an EC2 instance and an RDS for Oracle DB instance. The tutorial shows you how toaccess the DB instance from the EC2 instance using a standard Oracle client. As a bestpractice, this tutorial creates a private DB instance in a virtual private cloud (VPC). In mostcases, other resources in the same VPC, such as EC2 instances, can access the DB instance, butresources outside of the VPC can't access it.

After you complete the tutorial, there is a public and private subnet in each AvailabilityZone in your VPC. In one Availability Zone, the EC2 instance is in the public subnet, andthe DB instance is in the private subnet.

There's no charge for creating an AWS account. However, by completing this tutorial, you might incur costs for the AWS resources you use. You can delete these resources after you complete the tutorial if they are no longer needed.

This tutorial uses Easy create to create a DB instance running Oracle with the AWS Management Console. With Easy create, you specify only the DB engine type, DB instance size, and DB instance identifier. Easy create uses the default settings for the other configuration options. The DB instance created by Easy create is private.

Substitute the DB instance endpoint (DNS name) fororacle-db-instance-endpoint andsubstitute the master user name that you used foradmin. When you use Easycreate for Oracle, the database name is DATABASE.Provide the master password that you used when prompted for a password.

Anyways, I guess it wouldnt hurt if people recommended alternatives. I'm specifically looking for tutorials that also go into broader issues of learning to use Java besides just strictly the language such as learning to handle packages, perhaps things like gradle, how a realistic modern build process actually works, etc...

This tutorial is an introduction to using Python with Oracle Database. It contains beginner and advanced material. Sections can be done in any order. Choose the content that interests you and your skill level. The tutorial has scripts to run and modify, and has suggested solutions.

If you need to create a new user, review the grants created in samples/tutorial/sql/create_user.sql. Then open a terminal window, change to the samples/tutorial/sql directory, and run the create_user.sql script as the SYSTEM user, for example:

The goal of this, part 1 of the series, is not to get much into the concept of oracle contracts, the philosophy behind them, or even very deeply into what they are; the goal of this part of our Ethereum oracle tutorial is simply to: ff782bc1db