SHOW CREATE TABLE

Gäller för:markerad ja Databricks SQL markerad ja Databricks Runtime

Kommentar

Om du vill använda det här kommandot i materialiserade vyer eller strömmande tabeller måste du använda Databricks Runtime version 14.1 eller senare.

Returnerar instruktionen som användes för att skapa en viss tabell eller vy. Den returnerade uttrycket kan vara någon av följande typer:

SHOW CREATE TABLE i en tillfällig vy eller en tabell som inte finns utlöser ett undantag.

Syntax

SHOW CREATE TABLE { table_name | view_name }

Parameterar

Exempel

> CREATE TABLE test (c INT) ROW FORMAT DELIMITED FIELDS TERMINATED BY ','
    STORED AS TEXTFILE
    TBLPROPERTIES ('prop1' = 'value1', 'prop2' = 'value2');

> SHOW CREATE TABLE test;
                                       createtab_stmt
 ----------------------------------------------------
 CREATE TABLE `default`.`test` (`c` INT)
 USING text
 TBLPROPERTIES (
   'transient_lastDdlTime' = '1586269021',
   'prop1' = 'value1',
   'prop2' = 'value2')

I följande exempel visas SHOW CREATE TABLE för en måttvy. Utdata avbildar den ursprungliga definitionen och eventuella efterföljande ALTER VIEW ändringar, och visningsnamnet returneras som ett fullständigt kvalificerat namn i tre delar.

> CREATE OR REPLACE VIEW sample_sales_metrics_v2
    COMMENT 'Sales metrics for product and regional analysis'
    TBLPROPERTIES ('created_by' = 'Evan')
    WITH METRICS
    LANGUAGE YAML
    AS $$
  version: 1.1
  source: sample_sales
  comment: "Sales metrics for product and regional analysis"

  dimensions:
    - name: product_category
      expr: product_category
      comment: "Category of the product sold"
    - name: region
      expr: region
  measures:
    - name: total_sales
      expr: SUM(sales_amount)
      comment: "Sum of all sales amounts"
    - name: total_quantity
      expr: SUM(quantity)
      comment: "Total number of items sold"
  $$;

> ALTER VIEW sample_sales_metrics_v2
    SET TBLPROPERTIES ('purpose' = 'For testing');

> SHOW CREATE TABLE sample_sales_metrics_v2;
                              createtab_stmt
 ------------------------------------------------------------
 CREATE VIEW main.default.sample_sales_metrics_v2 (
   product_category COMMENT 'Category of the product sold',
   region,
   total_sales COMMENT 'Sum of all sales amounts',
   total_quantity COMMENT 'Total number of items sold')
 COMMENT 'Sales metrics for product and regional analysis'
 TBLPROPERTIES (
   'created_by' = 'Evan',
   'purpose' = 'For testing')
 WITH METRICS
 LANGUAGE YAML
 AS
 $$
 version: 1.1

 source: sample_sales

 comment: Sales metrics for product and regional analysis

 dimensions:
   - name: product_category
     expr: product_category
     comment: Category of the product sold
   - name: region
     expr: region

 measures:
   - name: total_sales
     expr: SUM(sales_amount)
     comment: Sum of all sales amounts
   - name: total_quantity
     expr: SUM(quantity)
     comment: Total number of items sold
 $$
  • Last updated on