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</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</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</p> Signup and view all the answers

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

    <p>7</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.</p> Signup and view all the answers

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

    <p>23</p> Signup and view all the answers

    How is the date data type stored internally?

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

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

    <p>7</p> Signup and view all the answers

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

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

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