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Click install Installation Oracle 11g Express
Click install Installation Oracle 11g Express

... users loaded into the default install.Once of these users is named HR.  To unlock the HR user so you can experiment with it, do the following:  Open SQL*Developer and open the connection for system-xe that we created in the last section.  After the SQL Worksheet displays, type command ...
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... store in databases, a database initially has no tables, and thus no fields or records. • The user must create one or more tables and must further define the structure of each table by defining the number and types of fields in the table. ...
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... Restore the dependencies in project.json by running the following commands in VS Code Terminal, otherwise, you will face this error: The type or namespace 'Data' does not exist $ dotnet restore Run the following command to rebuild and rerun the project $ dotnet run ...
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... Your sister has started her own home-décor shop. She sells items such as candles, pictures and knick-knacks. She wishes to track the items in her inventory, sales and customer information. You agree to assist her in setting up a simple MS Access database that will track the appropriate information. ...
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Slide 1
Slide 1

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Open Database Connectivity

In computing, ODBC (Open Database Connectivity) is a standard programming language middleware API for accessing database management systems (DBMS). The designers of ODBC aimed to make it independent of database systems and operating systems. An application written using ODBC can be ported to other platforms, both on the client and server side, with few changes to the data access code.ODBC accomplishes DBMS independence by using an ODBC driver as a translation layer between the application and the DBMS. The application uses ODBC functions through an ODBC driver manager with which it is linked, and the driver passes the query to the DBMS. An ODBC driver can be thought of as analogous to a printer driver or other driver, providing a standard set of functions for the application to use, and implementing DBMS-specific functionality. An application that can use ODBC is referred to as ""ODBC-compliant"". Any ODBC-compliant application can access any DBMS for which a driver is installed. Drivers exist for all major DBMSs, many other data sources like address book systems and Microsoft Excel, and even for text or CSV files.ODBC was originally developed by Microsoft during the early 1990s, and became the basis for the Call Level Interface (CLI) standardized by SQL Access Group in the Unix and mainframe world. ODBC retained a number of features that were removed as part of the CLI effort. Full ODBC was later ported back to those platforms, and became a de facto standard considerably better known than CLI. The CLI remains similar to ODBC, and applications can be ported from one platform to the other with few changes.
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