Invalid placement of ELT Insert Select Snap
|You cannot use the ELT Insert Select Snap at the beginning of a Pipeline.||Move the ELT Insert Select Snap to the middle or to the end of the Pipeline.|
Snap configuration invalid
|The specified target table does not exist in the database for the Snap to insert the provided subset values.||Ensure that the target table exists as specified for the ELT Insert Select Snap to insert the provided subset values.|
|Database encountered an error during Insert Select processing.|
Merging Two Tables and Creating a New Table
We need a query with the UNION clause to merge two tables. To write these merged records into a new table, we need to perform the INSERT INTO SELECT operation. This example demonstrates how we can do both of these tasks.
First, we build SELECT queries to read the target tables. To do so, we can use two ELT Select Snaps, in this example: Read Part A and Read Part B. Each of these Snaps is configured to output a SELECT * query to read the target table in the database. Additionally, these Snaps are also configured to show a preview of the SELECT query's execution as shown:
A preview of the outputs from the ELT Select Snaps is shown below:
Then, we connect the ELT Union Snap to the output view of the ELT Select Snaps. The SELECT * queries in both of these Snaps form the inputs for the ELT Union Snap. The ELT Union Snap is also configured to eliminate duplicates, so it adds a UNION DISTINCT clause.
Upon execution, the ELT Union Snap combines both incoming SELECT * queries and adds the UNION DISTINCT clause.
To perform the INSERT INTO SELECT operation, add the ELT Insert-Select Snap. We can perform this operation on an existing table. Alternatively, we can also use this Snap to write the records into a new table. To do so, we configure the Target Table Name field with the name of the new table.
The result is a table with the specified table name in the database after executing this Pipeline.