Abstract: A user interface may include one or more visualizations based on queries to a database using query model metadata. Updated metadata of columns of the database may be obtained which may be different from the query model metadata. A set of used columns and a set of unused columns may be determined based on the query model. One or more metadata mismatches may be determined based on a comparison of the query model metadata for the set of used columns and the updated metadata for the set of used columns. The one or more metadata mismatches may be presented in a user interface configured to enable a user to rectify each. One or more selections from the user may be obtained to rectify at least one of the one or more metadata mismatches. The corresponding columns may be deleted or replaced based on the one or more selections.

Abstract: A method for accessing data stored in a database may include receiving a query to generate, based on blended data, a visualization. The blended data may include a first set of data from a first data source and a second set of data from a second data source. The query may also include a payload. The method may also include accessing the first set of data by injecting, into the payload, the first permission, and transmitting, to the first data source, the payload including the first permission. The method may also include accessing the second set of data by injecting, into the payload, the second permission, and transmitting, to the second data source, the payload including the first permission, the first set of data, and the second permission. The method may also include causing, using the blended data, presentation of the visualization. Related systems and articles of manufacture are provided.

Abstract: A method for accessing data stored in a database may include receiving a query to generate, based on blended data, a visualization. The blended data may include a first set of data from a first data source and a second set of data from a second data source. The query may also include a payload. The method may also include accessing the first set of data by injecting, into the payload, the first permission, and transmitting, to the first data source, the payload including the first permission. The method may also include accessing the second set of data by injecting, into the payload, the second permission, and transmitting, to the second data source, the payload including the first permission, the first set of data, and the second permission. The method may also include causing, using the blended data, presentation of the visualization. Related systems and articles of manufacture are provided.