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Data Engineering
Join discussions on data engineering best practices, architectures, and optimization strategies within the Databricks Community. Exchange insights and solutions with fellow data engineers.
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Mado
by Valued Contributor II
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Resolved! How to enforce delta table column to have unique values?

Hi,I have defined a delta table with a primary key:%sql   CREATE TABLE IF NOT EXISTS test_table_pk ( table_name STRING NOT NULL, label STRING NOT NULL, table_location STRING NOT NULL,   CONSTRAINT test_table_pk_col PRIMARY KEY(table_name) ...

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SteveL
New Contributor II
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I'm with you.  But it DOES make sense because DBx databases are not application databases.  DBx is not intended to be used like this.  DBx databases are repositories for any ingested abstract data.  To manage the ingestion is purpose-built databases ...

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HariharaSam
by Contributor
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Resolved! Alter Delta table column datatype

Hi ,I am having a delta table and table contains data and I need to alter the datatype for a particular column.For example :Consider the table name is A and column name is Amount with datatype Decimal(9,4).I need alter the Amount column datatype from...

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saipujari_spark
Valued Contributor
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Hi @HariharaSam The following documents the info about how to alter a Delta table schema.https://docs.databricks.com/delta/update-schema.html

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