How to Use Describe Command in Sql

Connect to the database and navigate to the Object Explorer. For example for Delta tables you can see the current reader and writer versions of a table.

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The metadata information includes column name column type and column comment.

. The DESC is the short form of DESCRIBE command and used to dipslay the information about a table like column names and constraints on column name. Optionally a partition spec or column name may be specified to return the metadata pertaining to a partition or column respectively. For a list of tables in the current schema use the Show Tablescommand.

If you do use SQL Developer or Toad they have a feature where you bring up a table and it gives you the SQL not PLSQL - that is not needed plain and very fast SQL is all thats needed to re-create the. To control the width of the data displayed use the SET LINESIZE command. This may give unexpected text wrapping in your.

DESCRIBE TABLE statement returns the basic metadata information of a table. Use the DESCRIBE command to display information about any of the following items. Simply put the cursor on a function table or other object in the editor window and press the F4 key and detail about the object appears.

Output of a SELECT or XQuery statement. Decreasing or increasing the linesize with the SET LINESIZE command usually makes each column proportionally smaller or larger. Columns output for the DESCRIBE command are typically allocated a proportion of the linesize currently specified.

Using SQL Server Management Studio. Decreasing or increasing the linesize with the SET LINESIZE command usually makes each column proportionally smaller or larger. The following SQL statement selects all the columns from the Customers table sorted descending by the CustomerName column.

DESCRIBE DETAIL schema_nametable_name DESCRIBE DETAIL delta. Unless specified otherwise use the default column name col for elements of the array or key and value for the elements of the map. The F4 or Describe window is useful for displaying object information and.

Mysql -B -N -u root -pPASSWORD -h somehost -e SELECT DISTINCT CONCAT describe table_name AS query FROM information_schematables WHERE table_schemaDATABASE_NAME_HERE mysql -B -N -u root -pPASSWORD -h somehost DATABASE_NAME_HERE. In this tutorial we will use semicolon at the end of each SQL statement. For a list of available schemas use the Show Schemascommand.

Some database systems require a semicolon at the end of each SQL statement. DESCRIBE table-Name view-Name Description. The DESCcommand is used to sort the data returned in descending order.

To get information about the table present in the database and. The following is the query that display. SELECT explode array 10 20.

This may give unexpected text wrapping in your. Semicolon is the standard way to separate each SQL statement in database systems that allow more than one SQL statement to be executed in the same call to the server. If we want to show the structure of a database table or tables in the server then we will use the SQL command DESCRIBE or other keyword DESC which is identical to DESCRIBE one.

SELECT FROM Customers. SHOW columns from yourTableName command. Return information about schema partitioning table size and so on.

As the name suggests DESCRIBE is used to describe something. Since in database we have tables thats why we use DESCRIBE or DESC both are same command to describe the structure of a table. Show activity on this post.

Columns of a table or a view. To control the width of the data displayed use the SET LINESIZE command. Type ----- ----- ----- EMPLOYEE_ID NOT NULL NUMBER EMPLOYEE_NAME VARCHAR240 EMPLOYEE_HIRE_DATE DATE.

Up to 5 cash back DESCRIBE is most often used to view the definition of a table or a view. For a list of views in the current schema use the Show Viewscommand. 10 20 -- Describe a user defined scalar function CREATE FUNCTION dice n INT RETURNS INT NOT DETERMINISTIC COMMENT An n-sided dice RETURN.

If we are using the SSMS the following steps are used to describe the table definition. Columns output for the DESCRIBE command are typically allocated a proportion of the linesize currently specified. DESCRIBE employee Name Null.

Enter the command DESCRIBE followed by the name of the table or view you are interested in as the following example shows. The MySQLs DESCRIBE or DESC both are equivalent. SQL DESCRIBE TABLE is a SQL statement that is accountable for telling something about a specific table in the database.

The DESCRIBE command is equivalent to the following command. Indexes of a table. Provides a decription of the specified table or view.

See Detail schema for the detail schema. How do you describe an object in SQL. Select the table for which you want to display the properties.

Unfortunately you CANT execute the DESCRIBE command in SQL or in PLSQL because DESCRIBE is a SQLPlus command it is NOT a SQL or PLSQL command. OUT and INOUT parameters of a CALL statement. Semicolon after SQL Statements.

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