Talend + SQL + Datawarehousing - Beginner to Professional

Install Talend 7.3 on Windows by first confirming that Java 1.8 is installed, then download Open Studio, unzip, and run the installer.

Install Talend 8 on Windows by setting up Java 11, creating a new project, and letting the installer download required jars, while noting 7.3 compatibility and project migration.

Create a dedicated talent folder on your machine to organize input, output, and export jobs, and keep your talent workspace here for consistent project management.

Explore Talend open studio basics by navigating the repository, designer, palette, outline, and configuration tab, create and manage projects and jobs, and customize component settings.

Create your first Talend job by printing to the console with a Java component and using a message box, while understanding that Talend generates backend Java code automatically.

Export and import Talend jobs with dependencies using zip or directory formats; learn how to include metadata and routines, and how to manage workspace and overwrite options during import.

Learn to extract data from an Excel file with tFileInputExcel using a manual schema, configuring sheet name, header, and column data types.

Learn to extract data from a delimited file using the tFileInputDelimited component, define the schema (firstname, lastname, department, salary), set comma as the separator, and view results in the console.

Learn to extract data from Excel and delimited files using built-in, manual, and metadata-driven repository schemas, auto-building and reusing schemas, then adjust data types and preview results.

Install PostgreSQL and DBeaver, create the database and tables, then connect and test with a basic query. Follow the installation steps, download the correct installer, and remember the password.

Master the basics of sql for databases by creating and dropping databases, schemas, and tables, and manipulating data with insert, select, update, delete, and truncate queries.

Learn SQL basics: delete with conditions, truncate, alter to add or drop columns and rename tables, update with conditions, and commit or rollback to manage transactions.

Learn to extract data from a database table in Talend using a manual schema and print results to the console, then switch to metadata or repository schemas for data retrieval.

Master the tFilterRow processing component to transform etl data by filtering records (age greater than 30 and name length) and outputting passed and rejected rows.

Learn how to apply the SQL where clause to filter records, using not equal to, length-based conditions, and comparison operators with and/or for a sample table.

Learn how to use tFilterColumn to pass through only selected columns from the input, reorder them, and control which fields appear in the output.

Master sort component to order data with the order by clause in SQL, sorting by employee number in descending order and performing multi-column sorting: first name ascending, last name descending.

Learn to load database data into Excel and delimited files using tFileOutputExcel and tFileOutputDelimited, including headers, appending data, creating new sheets, and choosing separators and compression.

Learn to load data into a database table with Talend tDBOutput, using Excel and delimited inputs via a connection, and create or truncate tables with auto commit.

Explore how Talend connects components using main and lookup connections, filters, outputs, and iterate, then master on component, on top, and sub job triggers for data flow.

Learn to manage multiple files with the tFileList component to load all files with the same schema from a folder into one table, using file masks and iteration.

Learn an automated file workflow with tFileCopy and tFileDelete: load employee files, copy them to the loaded folder, then delete originals to reset the client folder.

Learn to archive and unarchive files using Talend's tFileArchive and tFileUnarchive, creating zip archives from folders, choosing compression options, password protection, and extracting to a target directory.

Learn to use tFileCompare to compare two files (text or binary), detect differences or identical results, then count rows with tFileRowCount and inspect file properties with tFileProperties, including md5.

Learn to use tChangeFileEncoding to convert file encodings among utf-8, utf-16, and iso, and use tFileTouch to create a blank trigger file signaling the next job.

Explore tMap basics, a powerful Talend component that can replace multiple tools by mapping inputs to outputs, creating variables, and defining filters and lookups.

Advance your talend skills with tMap by applying transformation rules in the expression section, creating variables, and using date and string functions to split data into multiple outputs.

Learn how to implement tMap joins in Talend, including left, right, inner, and full joins between a main table and a lookup table on key columns, handling outputs and rejects.

Learn how to write various joins in sql—left, right, inner, and full—using the syntax select, from, and on, with an employee and details table example.

Use the tJoin component to join a main table and a lookup, define the key, and map columns from both inputs with left or inner join.

Explore tReplace for string substitution with case sensitivity and tConvertType for converting string data to integer, numeric, and other types, ensuring proper schema alignment in Talend workflows.

Demonstrate using replace in SQL to find and substitute values in a column and perform type casting to convert strings to integers, dates, or timestamps, with practical examples.

Explore using aggregate raw and aggregate sorted components to group by location, count employees, and compute sum or max/min salaries, with tips on proper grouping and outputs.

Learn to write SQL aggregate queries using group by to compute sum, minimum, and maximum of salaries by location, illustrated with the employee detail table.

Learn to normalize and denormalize data with Talend's tNormalize and tDenormalize in a data warehousing context, converting semicolon-delimited skills into multiple rows and back, using sorting and merge options.

Explore the tSampleRow component to filter and output specific rows from a dataset, using line ranges, discrete values, and multi-output routing with replicate in Talend.