Dynamic SQL row
Dynamic SQL row
Dynamic SQL rowDescription
The Dynamic SQL Row transform allows you to execute a SQL statement that is defined in a database field.
The lookup values returned by the transform are added as new fields onto the stream.
Hop Engine
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Spark
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Flink
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Dataflow
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Options
Transform name
Name of the transform; This name has to be unique in a single pipeline
Connection
Select a database connection for the lookup
SQL field name
Specify the field that contains the SQL to execute
Number of rows to return
Specify the number of records to return. 0 means, return all rows
Outer Join
- false: don’t return rows where nothing is found - true: at least return one source row, the rest is NULL
Replace variables
In case you want to use variables in the SQL, e.g. ${table_name}, this option needs to be checked.
Query only on parameters change
If your SQL statements do not change a lot, check this option to reduce the number of physical database queries.
Template SQL
In Hop meta and data are separate so you have to specify the meta part in template SQL (field name and type). I mean any statement that returns the same row structure.
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