Exam DP-203 topic 1 question 77 discussion

In the Question "The solution must assign a name and override the inferred data type of each column", so we must need a WITH Clause to define the column names and data types.

I think it's A. WITH CLAUSE https://learn.microsoft.com/en-us/azure/synapse-analytics/sql/develop-openrowset

Selected Answer: A

A is correct because-:SELECT * FROM OPENROWSET( BULK 'https://storage1.blob.core.windows.net/container/file.tsv', FORMAT='CSV', PARSER_VERSION='2.0', FIELDTERMINATOR = '\t', ROWTERMINATOR = '\n' ) WITH ( Column1Name datatype1, Column2Name datatype2, Column3Name datatype3 ) AS result; B. ROWSET_OPTIONS bulk option: Configures aspects of data processing like buffering or parallelism, but it doesn’t handle column names or types. C. DATAFILETYPE bulk option: Used to specify the file type but not for defining column names or types. D. DATA_SOURCE parameter: Points to an external data source, but it doesn't help with naming or overriding data types. Thus, the WITH clause is the correct option to include in the OPENROWSET function to assign column names and override inferred data types.

DATA_SOURCE is not even an existing parameter option in th OPENROWSET function, the right existing option is DATASOURCE, without underscore, but it is not needed here, so A is the right option, see doc: https://learn.microsoft.com/en-us/sql/t-sql/functions/openrowset-transact-sql?view=sql-server-ver16

Question insists on the point that the file has not the header row! specifying a datasource is not strictly required, since OPENROWSET can connect to storage even with a simple link and managed identity. The WITH clause is the most reasonable recommendation to include in the solution.

There isn't header, so you have to specify columns name manually in WITH clause

With clause can be omitted for csv files see automatic schema discovery at https://learn.microsoft.com/en-us/azure/synapse-analytics/sql/develop-openrowset#automatic-schema-discovery Generic colnames will be assigned

There is no header row, therefore you should define one using the WITH Clause

The WITH clause allows you to specify the schema of the data source and override the inferred data type of each column. You can also use the WITH clause to specify the name of the external table and the location of the data source

WITH CLAUSE

To read TSV files without a header row using the `OPENROWSET` function and to assign a name and specify the data type for each column, you should use: A. the WITH clause The WITH clause is used in the `OPENROWSET` function to define the format file or to directly define the structure of the file by specifying the column names and data types.

A - WITH Clause is the correct answer.

D is right.

To read TSV (Tab-Separated Values) files using ad-hoc queries and the OPENROWSET function in Azure Synapse Analytics, and to assign a name and override the inferred data type of each column, you should include the following in the OPENROWSET function: A. the WITH clause The WITH clause allows you to specify options for reading the data, including defining the column names and data types. You can use the WITH clause to provide column definitions and specify the data type for each column in the TSV file, which allows you to override the inferred data types.

They ask for "in the function", not "in the query"

Correct is A (explained in another comment)