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SHOW TABLE EXTENDED

Applies to: check marked yes Databricks SQL check marked yes Databricks Runtime

Shows information for all tables matching the given regular expression. Output includes basic table information and file system information like Last Access, Created By, Type, Provider, Table Properties, Location, Serde Library, InputFormat, OutputFormat, Storage Properties, Partition Provider, Partition Columns, and Schema.

If a partition specification is present, it outputs the given partition's file-system-specific information such as Partition Parameters and Partition Statistics. You cannot use a table regular expression with a partition specification.

note

For compatibility with Apache Spark, this command renders the table column types using Apache Spark notation. The mapping to SQL is described in Language mappings. Other ways to retrieve table column information are DESCRIBE TABLE, and on Unity Catalog INFORMATION_SCHEMA.COLUMNS.

Syntax​

SHOW TABLE EXTENDED [ { IN | FROM } schema_name ] LIKE regex_pattern
    [ PARTITION clause ]

Parameters​

  • schema_name

    Specifies schema name. If not provided, uses the current schema.

  • regex_pattern

    The regular expression pattern used to filter out unwanted tables.

    • Except for * and | character, the pattern works like a regular expression.
    • * alone matches 0 or more characters and | is used to separate multiple different regular expressions, any of which can match.
    • The leading and trailing blanks are trimmed in the input pattern before processing. The pattern match is case-insensitive.

  • PARTITION clause

    Optionally specifying partitions. You cannot use a table regex pattern with a PARTITION clause.

Examples​

SQL
-- Assumes `employee` table partitioned by column `grade`
> CREATE TABLE employee(name STRING, grade INT) PARTITIONED BY (grade);
> INSERT INTO employee PARTITION (grade = 1) VALUES ('sam');
> INSERT INTO employee PARTITION (grade = 2) VALUES ('suj');

-- Show the details of the table

> SHOW TABLE EXTENDED LIKE 'employee';
 database tableName isTemporary                          information
 -------- --------- ----------- --------------------------------------------------------------
 default  employee  false       Database: default
                                Table: employee
                                Owner: root
                                Created Time: Fri Aug 30 15:10:21 IST 2019
                                Last Access: Thu Jan 01 05:30:00 IST 1970
                                Created By: Spark 3.0.0
                                Type: MANAGED
                                Provider: hive
                                Table Properties: [transient_lastDdlTime=1567158021]
                                Location: file:/opt/spark1/spark/spark-warehouse/employee
                                Serde Library: org.apache.hadoop.hive.serde2.lazy
                                .LazySimpleSerDe
                                InputFormat: org.apache.hadoop.mapred.TextInputFormat
                                OutputFormat: org.apache.hadoop.hive.ql.io
                                .HiveIgnoreKeyTextOutputFormat
                                Storage Properties: [serialization.format=1]
                                Partition Provider: Catalog
                                Partition Columns: [`grade`]
                                Schema: root
                                  -- name: string (nullable = true)
                                  -- grade: integer (nullable = true)

-- show multiple table details with pattern matching
> SHOW TABLE EXTENDED  LIKE 'employe*';
 database tableName isTemporary                          information
 -------- --------- ----------- --------------------------------------------------------------
 default  employee  false       Database: default
                                Table: employee
                                Owner: root
                                Created Time: Fri Aug 30 15:10:21 IST 2019
                                Last Access: Thu Jan 01 05:30:00 IST 1970
                                Created By: Spark 3.0.0
                                Type: MANAGED
                                Provider: hive
                                Table Properties: [transient_lastDdlTime=1567158021]
                                Location: file:/opt/spark1/spark/spark-warehouse/employee
                                Serde Library: org.apache.hadoop.hive.serde2.lazy
                                .LazySimpleSerDe
                                InputFormat: org.apache.hadoop.mapred.TextInputFormat
                                OutputFormat: org.apache.hadoop.hive.ql.io
                                .HiveIgnoreKeyTextOutputFormat
                                Storage Properties: [serialization.format=1]
                                Partition Provider: Catalog
                                Partition Columns: [`grade`]
                                Schema: root
                                  -- name: string (nullable = true)
                                  -- grade: integer (nullable = true)

 default  employee1 false       Database: default
                                Table: employee1
                                Owner: root
                                Created Time: Fri Aug 30 15:22:33 IST 2019
                                Last Access: Thu Jan 01 05:30:00 IST 1970
                                Created By: Spark 3.0.0
                                Type: MANAGED
                                Provider: hive
                                Table Properties: [transient_lastDdlTime=1567158753]
                                Location: file:/opt/spark1/spark/spark-warehouse/employee1
                                Serde Library: org.apache.hadoop.hive.serde2.lazy
                                .LazySimpleSerDe
                                InputFormat: org.apache.hadoop.mapred.TextInputFormat
                                OutputFormat: org.apache.hadoop.hive.ql.io
                                .HiveIgnoreKeyTextOutputFormat
                                Storage Properties: [serialization.format=1]
                                Partition Provider: Catalog
                                Schema: root
                                  -- name: string (nullable = true)

-- show partition file system details
> SHOW TABLE EXTENDED  IN default LIKE 'employee' PARTITION (grade = 1);
 database tableName isTemporary                          information
 -------- --------- ----------- --------------------------------------------------------------
 default  employee  false       Partition Values: [grade=1]
                                Location: file:/opt/spark1/spark/spark-warehouse/employee
                                /grade=1
                                Serde Library: org.apache.hadoop.hive.serde2.lazy
                                .LazySimpleSerDe
                                InputFormat: org.apache.hadoop.mapred.TextInputFormat
                                OutputFormat: org.apache.hadoop.hive.ql.io
                                .HiveIgnoreKeyTextOutputFormat
                                Storage Properties: [serialization.format=1]
                                Partition Parameters: {rawDataSize=-1, numFiles=1,
                                transient_lastDdlTime=1567158221, totalSize=4,
                                COLUMN_STATS_ACCURATE=false, numRows=-1}
                                Created Time: Fri Aug 30 15:13:41 IST 2019
                                Last Access: Thu Jan 01 05:30:00 IST 1970
                                Partition Statistics: 4 bytes

-- show partition file system details with regex fail
> SHOW TABLE EXTENDED  IN default LIKE 'empl*' PARTITION (grade = 1);
 Error: TABLE_OR_VIEW_NOT_FOUND
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