Creating a New Table in Azure Synapse Analytics
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Questions and Answers

What is the primary purpose of the Transact-SQL syntax conventions section in the provided text?

  • To provide guidance on how to use temporary tables in Azure Synapse Analytics
  • To explain the syntax and arguments used in creating new tables in Azure Synapse Analytics or Analytics Platform System (PDW) (correct)
  • To list the Windows collations supported by SQL Server
  • To discuss the different table structures and indexing options available in Azure Synapse Analytics

Which of the following is NOT a valid table structure option mentioned in the text?

  • PRIMARY KEY (correct)
  • DEFAULT constant_expression
  • CONSTRAINT constraint_name
  • UNIQUE KEY

If a user wants to create a local temporary table in Azure Synapse Analytics, what is the correct syntax for the table_name argument?

  • temporary_table_name
  • temp_table_name
  • #table_name (correct)
  • table_name

What is the default value for the NULL/NOT NULL column option in Azure Synapse Analytics?

<p>NULL (D)</p> Signup and view all the answers

What is the purpose of the section on Indexing tables in Azure Synapse Analytics?

<p>To provide guidance on choosing the type of table to create (D)</p> Signup and view all the answers

Which of the following is NOT a valid argument for the CREATE TABLE statement in Azure Synapse Analytics or Analytics Platform System (PDW)?

<p>column_type (A)</p> Signup and view all the answers

What is the default value of n for the datetimeoffset data type?

<p>7 (D)</p> Signup and view all the answers

How does the datetime2 data type differ from the datetime data type?

<p>It allows you to specify the number of fractional seconds. (B)</p> Signup and view all the answers

What is the maximum number of characters used to store a datetime value?

<p>23 (D)</p> Signup and view all the answers

How is the date data type stored internally?

<p>As an integer (A)</p> Signup and view all the answers

What is the default value of n for the time data type?

<p>7 (A)</p> Signup and view all the answers

What determines the precision and storage size of the float data type?

<p>The value of n (D)</p> Signup and view all the answers

Which statement about the CLUSTERED COLUMNSTORE INDEX option is correct?

<p>It stores the table as a clustered columnstore index, which is the default for Azure Synapse Analytics. (A)</p> Signup and view all the answers

What is the purpose of the DISTRIBUTION = HASH option?

<p>It assigns each row to one distribution by hashing the value stored in the specified distribution column(s), allowing for more even distribution of data. (B)</p> Signup and view all the answers

Which statement about the DISTRIBUTION = ROUND_ROBIN option is correct?

<p>It distributes the rows evenly across all distributions in a round-robin fashion, which is the default for Azure Synapse Analytics. (D)</p> Signup and view all the answers

What is the purpose of the PARTITION option?

<p>It creates one or more table partitions, which are horizontal table slices that allow operations on subsets of rows. (A)</p> Signup and view all the answers

Which statement about the CLUSTERED INDEX option is correct?

<p>It stores the table as a clustered index with one or more key columns, storing the data by row. (C)</p> Signup and view all the answers

What is the purpose of the DISTRIBUTION = REPLICATE option?

<p>It stores one copy of the table on each Compute node, which is the default for Analytics Platform System (PDW). (B)</p> Signup and view all the answers

Which statement about the HEAP option is correct?

<p>It stores the table as a heap, which is the default for Analytics Platform System (PDW). (A)</p> Signup and view all the answers

What is the purpose of the LOCATION = USER_DB option?

<p>It is deprecated and no longer affects behavior, though it is still syntactically accepted. (C)</p> Signup and view all the answers

Which statement about ordered clustered columnstore indexes is correct?

<p>Data in an ordered clustered columnstore index is sorted before being compressed into columnstore segments. (B)</p> Signup and view all the answers

Which data types are supported in Azure Synapse Analytics?

<p>Azure Synapse Analytics supports the most commonly used data types. (B)</p> Signup and view all the answers

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