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To log heap memory usage in JRuby, you can use the following steps:Enable verbose GC logging by setting the following system properties: -Druby.jruby.gc.log.enabled=true -Djruby.native.verbose=true Run your JRuby application with these system properties to enable GC logging and monitor heap memory usage. Analyze the generated logs to track the memory usage of your JRuby application and identify any potential memory leaks or performance issues.

To call a stored procedure of Oracle using C#, you can use the Oracle Data Provider for .NET (ODP.NET) library. First, you need to install the Oracle Data Provider for .NET and add a reference to it in your C# project.Next, establish a connection to the Oracle database using the OracleConnection class and provide the connection string with the necessary details like username, password, and server name.Then, create an OracleCommand object and set the CommandType property to CommandType.

To use GraphQL TypeScript types in React.js, you can start by defining your GraphQL schema using the GraphQL schema language. Once you have your schema defined, you can generate TypeScript types using tools like graphql-codegen. This will create types based on your GraphQL schema.Next, you can import these generated types into your React.js components and use them to define the shape of your data. This will help you ensure that your data is correctly typed and checked at compile time.

To connect to a SQLite3 database in JRuby, you can use the jdbc-sqlite3 gem. First, make sure you have the gem installed by adding it to your Gemfile and running bundle install.Next, you can establish a connection to the database by requiring the gem and using the java.sql.DriverManager class to create a connection object. You will need to provide the path to your SQLite3 database file as a parameter to the getConnection method.

To find specific values in a table in Oracle, you can use the SELECT statement with a WHERE clause. The WHERE clause allows you to specify conditions that the data must meet in order to be included in the result set. You can use various operators such as equal to (=), not equal to (!=), greater than (>), less than (<), etc., to define the conditions for the search. You can also use logical operators such as AND, OR, and NOT to combine multiple conditions.

In GraphQL, you can pass a unique identifier in a query by defining a parameter in the query called $id (or any other name you choose). This parameter can be of type String and should be unique for each query. When sending a request to the GraphQL server, you can include the unique identifier as an argument in the query to retrieve specific data associated with that identifier. This allows you to fetch specific data from the server based on the unique ID passed in the query.

To create a user in Oracle 12c, you first need to connect to the Oracle database as a user with administrative privileges, such as the SYS or SYSTEM user. Once connected, you can use the CREATE USER statement to create a new user.The basic syntax for creating a user in Oracle 12c is:CREATE USER username IDENTIFIED BY password;You can also assign various privileges to the user, such as granting them the ability to connect to the database, creating tables, or accessing specific objects.

In GraphQL, you can pass object type arguments in a query by defining the input object type in your schema and then using this type as an argument for your query. To do this, you need to create a new input object type in your schema, define the fields that you want to pass as arguments, and then use this input object type as an argument in your query.

In Oracle, UNO stands for Unified Network Objects, which is a distributed computing architecture that enables the integration of different systems on different platforms. It provides a unified environment for developing, managing, and executing cross-platform applications. On the other hand, DUAL is a special one-row table present in Oracle database that is used for performing tasks such as selecting pseudocolumns like SYSDATE or generating dummy data.

In GraphQL, you can set a default value for a field by providing a defaultValue property when defining the field in your schema. This defaultValue will be used as the value for the field if no value is provided in the query.For example, you can define a field with a default value like this: type Query { exampleField: String defaultValue: "Hello, World!" } In this example, the field "exampleField" will have the default value of "Hello, World.