Teradata Package for LangChain Function Reference - delete_datasets - Teradata® Package for LangChain - Look here for syntax, methods and examples for the functions included in the Teradata langchain-teradata package.
Teradata® Package for LangChain Function Reference
- Deployment
- VantageCloud
- Edition
- Enterprise
- Product
- Teradata® Package for LangChain
- Release Number
- 20.00.00.01
- Published
- December 2025
- ft:locale
- en-US
- ft:lastEdition
- 2025-12-19
- dita:id
- Langchain-Teradata_FxRef_Lake
- Product Category
- Teradata Vantage
- libs.teradata.langchain_teradata.TeradataVectorStore.delete_datasets = delete_datasets(self, data, **kwargs)
- DESCRIPTION:
Deletes the specified dataset(s) from the an existing content-based vector store.
PARAMETERS:
data:
Required Argument.
Specifies the name of the tables or teradataml DataFrames to be deleted from the VectorStore.
Types: str, DataFrame, or list of str/DataFrame
database_name:
Optional Argument.
Specifies the database name where the input table(s) or DataFrame(s) are located.
Note: If not specified, all input data with the table name of "data" is deleted
from the Vector Store irrespective of the database in which it is located.
Types: str
update_style:
Optional Argument.
Specifies the style to be used for alter operation of the data
from the vector store when "search_algorithm" is KMEANS/HNSW.
Default Value: MINOR
Permitted Values: MINOR, MAJOR
Types: str
RETURNS:
None
RAISES:
TeradataMlException
EXAMPLES:
# Create an instance of an 'content-based' vector store by passing the 'amazon_reviews_25' table.
# Note:
# This is optional and can be skipped if the vector store is already created.
>>> from langchain_teradata import TeradataVectorStore
>>> from teradataml import DataFrame, copy_to_sql
>>> from teradatagenai import load_data
>>> load_data("byom", "amazon_reviews_25")
>>> amazon_reviews_25 = DataFrame('amazon_reviews_25')
>>> amazon_reviews_10 = load_data("byom", "amazon_reviews_10")
>>> vs_instance1 = TeradataVectorStore.from_datasets(name = "vs_example_1",
data = [amazon_reviews_25, amazon_reviews_10],
key_columns = ["rev_id", "aid"],
data_columns = ["rev_text"],
embedding = "amazon.titan-embed-text-v1")
# Delete data from an existing content-based vector store "vs_example_1"
>>> vs_instance1.delete_datasets(data=amazon_reviews_10)