Can we write SQL query in expression transformation in Informatica?
The SQL Transformation in Informatica is used to write or use SQL Queries in the middle of the transformation. Using this SQL transformation, you can Insert, Delete, or Update rows in a Database. If you are familiar with SQL, then you can use this transformation.
How can we create table using SQL transformation in Informatica?
Create a new mapping, drag the products source definition to the mapping. Go to the toolbar -> Transformation -> Create -> Select the SQL transformation. Enter a name and then click create. Select the execution mode as query mode, DB type as Oracle, connection type as static.
Can you transform data in SQL?
Another useful data transformation is to change the data type of a column within a query. This is usually done to use a function only available to one data type, such as text, while working with a column that is in a different data type, such as a numeric. You can now apply text functions to this transformed column.
What are transformations in SQL?
Use the SQL transformation to call a stored procedure or function in a relational database or to processes SQL queries midstream in a pipeline. The transformation can call a stored procedure or function, process a saved query, or process a query that you create in the transformation SQL editor.
How do I run a SQL stored procedure from transformation?
call sp_proc(); If you use SQL statement, execute sp_proc(); to call a stored procedure from SQL transformation, the statement returns ORA-00900 error. This statement is run successfully from Oracle clients like SQL*PLUS.
What is XML transformation in Informatica?
XML Source Qualifier Transformation: It is an active transformation as well as connected transformation. It represents the data elements that the Informatica Server reads when it executes a session with XML sources. XML Source Qualifier has one input or output port for every column in the source.
How do you transform a table in SQL?
Use subqueries to transform data tables by nesting one query within a query. Use set operations to query data from multiple tables. Learn about conditional aggregates, a way to use aggregate functions based on a given set of conditions. Use built-in date, number, and string functions to transform table data.
Can you clean data with SQL?
SQL is a foundational skill for data analysts but its application is sometimes limited within the data pipeline. However, SQL can be successfully used for many pre-processing tasks, such as data cleaning and wrangling, as demonstrated here by example.
What is transaction control transformation in Informatica?
The Transaction Control transformation is an active transformation that commits or rolls back sets of rows during a mapping run. Use the Transaction Control transformation to commit or roll back transactions from transactional targets such as relational, XML, Amazon Redshift, and REST V2 targets.
What are the features of Informatica PowerCenter?
Key Features
- Business and IT collaboration.
- Rapid prototyping, profiling, and validation.
- Reusability, automation, and ease of use.
- Universal connectivity.
- Scalability, performance, and zero downtime.
- Automated data validation testing.
- Operations and governance oversight.
- Advanced data transformation.
How does the SQL transformation work in Informatica?
We can insert, update, delete and retrieve rows from the database at run time using the SQL transformation. The SQL transformation processes external SQL scripts or SQL queries created in the SQL editor. You can also pass the database connection information to the SQL transformation as an input data at run time.
How does a SQL transformation work in SQL editor?
Query Mode: The SQL transformation executes a query that defined in the query editor. You can pass parameters to the query to define dynamic queries. The SQL transformation can output multiple rows when the query has a select statement. In query mode, the SQL transformation acts as an active transformation.
How are transformations used in the power center designer?
Informatica Transformations Informatica Transformations are repository Objects that are used to perform aggregations, sorting, merging, modifying, distributing, etc., while passing data through them. The Power Center Designer provides a set of transformations in Informatica that perform specific functions.
When to use SQL transformation in query mode?
You can pass parameters to the query to define dynamic queries. The SQL transformation can output multiple rows when the query has a select statement. In query mode, the SQL transformation acts as an active transformation.