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Combine Two Columns from Different Tables into a Single Column Efficiently
Is there a way to have 2 columns from separate tables write into the same column without overwriting eachother?
Yes, you can use the Write to Table integration to map multiple columns into a single destination column. Here's how:1. Add the Write to Table integration by clicking "Add Enrichment" 2. Select your destination table 3. Use column mapping to map the data from your source tables 4. You can map multiple source columns to the same destination columnThe Write to Table action supports writing single values, lists, or objects, giving you flexibility in how you transfer and combine data between tables.Note: Make sure to carefully consider how you want the data to be combined, as you'll need to set up the mapping for each source table separately. Sources: Write to table integration overview | Documentation | Clay University Write to Other Table with Clay Labs
James Z.··When I tried to do this, my new column overwrote and blanked out all data for rows it didnt have data for.
This behavior occurs because when mapping to an existing column, the process will overwrite the existing values within the destination column.To avoid this issue when transferring data between tables, you should:1. Carefully plan your column mapping strategy before starting 2. Consider creating a new column instead of mapping to an existing one 3. If you need to combine data in the same column, first ensure you have all the source data prepared before mappingFor the best results when copying columns from one table to another, use the Column mapping feature in Write to Table, which helps keep data aligned and consistent while reducing manual data entry issues. Sources: Table columns overview | Documentation | Clay University Write to table integration overview | Documentation | Clay University
- James Z.··
That doesnt help
I apologize that my response wasn't helpful. Would you like to rephrase your question or speak with our team?
kushagra··Write to separate columns and then merge later?
Yes, this is a good approach to avoid overwriting existing data. Here's how you can do it:1. First, add new separate columns for your data using the "Add column" option (either scroll right or use "Insert right/left" from an existing column's dropdown menu). 2. Once you have your data in separate columns, you can merge them using the "Merge columns" feature: • Click "Add Column > Merge columns" • Input a formula to combine the two columns as neededThis way, you'll preserve your existing data while having full control over how the columns are combined. Sources: Hide, Re-order, Sort, Filter, Merge Columns Table columns overview | Documentation | Clay University
- James Z.··
I have 29k rows. I guess I could create a merge column. Just hoping for a more simple way.
Yes, there's a straightforward way to merge your columns using the "Merge columns" feature, which can handle large datasets like your 29,000 rows:1. Click "Add Column > Merge columns" 2. Input a formula to combine your two columns as neededThis method is efficient as it creates a new column with your merged data while preserving your original columns and their data. You can use this approach to copy and combine specific columns while keeping data aligned and consistent. Sources: Hide, Re-order, Sort, Filter, Merge Columns Write to table integration overview | Documentation | Clay University
- kushagra··
so you are writing from 2 separate tables into a third table, but the mapping is such that data flows from both the tables to the same column? that shouldn't be an issue i guess because each time you write something a new row is created, so there shouldn't be an overlap🤔
Yes, you can write data from two separate tables into the same column of a third table without causing data overlap. When using the Write to Table integration, each write operation creates a new row in the destination table, so your data won't overwrite existing entries. You can set this up by:1. Using the Write to Table integration for each source table 2. Mapping the desired columns from your source tables to the same column in your destination table 3. Each write operation will create new rows, preserving all dataThe Write to Table feature supports writing both single values and lists, giving you flexibility in how you transfer the data. Sources: Write to table integration overview | Documentation | Clay University Write to Other Table with Clay Labs