How to DESCRIBE TABLE in SQL?
- DESCRIBE can be said as a synonym for the command EXPLAIN TABLE. These both statements when executed will provide information about all table columns.
- Therefore, using DESCRIBE TABLE in SQL it will tell you either about the columns present in that specific table or its current values type and also the default values for a table’s stage properties.
What is describe command in SQL Server?
DESCRIBE means to show the information in detail. Since we have several tables in our SQL Server database, we will need a command to show a table's structure, such as column names, data types, constraints on column names, etc. SQL Server does not have any command to display the table structure like Oracle or MySQL provides DESCRIBE or DESC command.
What is the meaning of describe in SQL?
SQL DESCRIBE TABLE is a SQL statement that is accountable for telling something about a specific table in the database. 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.
How to show the structure of a database table in SQL?
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.
What is the use of describe command in MySQL?
As the name suggests, DESCRIBE is used to describe something. Since in database we have tables, that’s why we use DESCRIBE or DESC (both are same) command to describe the structure of a table.
What is DESC command in SQL?
The DESC command is used to sort the data returned in descending order.
How can I see table description in SQL?
In Object Explorer, select the table for which you want to show properties. Right-click the table and choose Properties from the shortcut menu. For more information, see Table Properties - SSMS.
How do you describe a table?
TipsStart by saying what information is shown. ... In the second paragraph give an overview of the most important features of the information.Be selective and choose the key observations and trends. ... Divide your observations into paragraphs about different aspects of the data.More items...
What is the use of describe table name command?
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.
What does DESC table_name do?
The SQL DESCRIBE TABLE query will make us to know about the organization of table that consists of name of table column with data type values such as VARCHAR, CHAR, INT, FLOAT, TIME, DATE, NUMBER or any XML type, used for the respective fields in the table, also it displays column having NULL or NOT NULL database ...
How do you get DDL of a table in SQL Server?
To generate the table DDL via query, you can use show create command. SHOW CREATE TABLE yourTableName; The above syntax is MySQL specific. Suppose, we have a table with the name 'DDLOfTableStudent'.
How do you describe a table structure in SQL?
Since in database we have tables, that's why we use DESCRIBE or DESC(both are same) command to describe the structure of a table. Syntax: DESCRIBE one; OR DESC one; Note : We can use either DESCRIBE or DESC(both are Case Insensitive).
How do I view a column description in SQL Server?
Using the Information SchemaSELECT TABLE_NAME FROM INFORMATION_SCHEMA. TABLES.SELECT TABLE_NAME, COLUMN_NAME FROM INFORMATION_SCHEMA. COLUMNS.SELECT COLUMN_NAME FROM INFORMATION_SCHEMA. COLUMNS WHERE TABLE_NAME = 'Album'IF EXISTS( SELECT * FROM INFORMATION_SCHEMA. ... IF EXISTS( SELECT * FROM INFORMATION_SCHEMA.
How do I write a database table description?
3 simple statments should do for a table description: one describing what the table holds, one describing the initial state of data in the table (empty or pre-filled), and one describing how data moves in/out of the table. Show activity on this post.
Why do we use DESC in MySQL?
DESCRIBE means to show the information in detail. Since we have tables in MySQL, so we will use the DESCRIBE command to show the structure of our table, such as column names, constraints on column names, etc. The DESC command is a short form of the DESCRIBE command.
How do I print a SQL table schema?
In Management Studio, Click the "+" next to your database expanding the objects below it and click on "Tables" Open the Tables detail view by selecting "View" -> "Object Explorer Details" from the menu. Now select all tables (on the right hand side in the object details)
How do I get column names in SQL?
In SQL Server, you can select COLUMN_NAME from INFORMATION_SCHEMA. COLUMNS .
How do I view a column description in SQL Server?
Using the Information SchemaSELECT TABLE_NAME FROM INFORMATION_SCHEMA. TABLES.SELECT TABLE_NAME, COLUMN_NAME FROM INFORMATION_SCHEMA. COLUMNS.SELECT COLUMN_NAME FROM INFORMATION_SCHEMA. COLUMNS WHERE TABLE_NAME = 'Album'IF EXISTS( SELECT * FROM INFORMATION_SCHEMA. ... IF EXISTS( SELECT * FROM INFORMATION_SCHEMA.
What is a table definition in SQL?
Tables are database objects that contain all the data in a database. In tables, data is logically organized in a row-and-column format similar to a spreadsheet. Each row represents a unique record, and each column represents a field in the record.
How do you describe a table in SQL Developer?
1:215:55SQL DESCRIBE table structure | Oracle SQL fundamentals - YouTubeYouTubeStart of suggested clipEnd of suggested clipBut this command is called as describe command describe table name so guys whenever I say table nameMoreBut this command is called as describe command describe table name so guys whenever I say table name it is always one in the same owner dot table name that's the exact syntax. But if you don't specify
How can I see the structure of a view in SQL Server?
Get view properties by using Object Explorer In Object Explorer, select the plus sign next to the database that contains the view to which you want to view the properties, and then click the plus sign to expand the Views folder. Right-click the view of which you want to view the properties and select Properties.
How to DESCRIBE TABLE in SQL?
DESCRIBE can be said as a synonym for the command EXPLAIN TABLE. These both statements when executed will provide information about all table columns.
What is a SQL description table?
The SQL DESCRIBE TABLE query will make us to know about the organization of table that consists of name of table column with data type values such as VARCHAR, CHAR, INT, FLOAT, TIME, DATE, NUMBER or any XML type, used for the respective fields in the table, also it displays column having NULL or NOT NULL database objects that says if the column do include null values or not.
What is a SQL statement that tells something about a specific table in the database?
SQL DESCRIBE TABLE is a SQL statement that is accountable for telling something about a specific table in the database. 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. For getting information about the table present in the database and find the attributes related to it, we will use either DESCRIBE or DESC where both of them are Case Insensitive and produces the similar output. We implement the DESCRIBE TABLE statement for getting the info about the name of the column, data type of the column, NULL or NOT NULL attributes of column and table with database size accuracy along with If NUMERIC type scale.
Why is SQL describe useful?
Thus, the SQL DESCRIBE TABLE is beneficial for fetching out details about the current table present in the database.
What are the fields in a customer table?
Let us take the table Customer with fields: CustomerID, CustomerName, Credit_Limit and City having their respective data types and other attributes.
What does a YES/NO value mean in a table?
The data type values with its length and NULL attribute with YES/NO values for its presence and PRIMARY key are also provided in the structure of the table. Note that the YES in NULL column says that the value for that specific column of table can be NULL and NO denotes we cannot place or insert NULL values.
Can you put table name in quotes?
Just a quick note: don't put the table name in quotes and don't use the TableOwner.TableName syntax.
Can select be used in a stored procedure?
The above mentioned select can be used in a system marked stored procedure and it can be called from any database of your instance on a simple way:
Is sp_columns unreadable?
The output from sp_columns is ludicrously unreadable in sqlcmd even using enormous terminal widths. The solutions utilizing selectfound below are much more appropriate for sqlcmd users.
Is @tablename a variable?
It looks like @tablenameis a variable in the example. The sp works both ways, with either a string or the 'plain' tablename (exec sp_help Employeesor exec sp_help 'Employees')
What is the command to describe a table?
As the name suggests, DESCRIBE is used to describe something. Since in database we have tables, that’s why we use DESCRIBE or DESC (both are same) command to describe the structure of a table. Syntax: DESCRIBE one; OR DESC one;
When are all of the features of table described?
All of these features of table are described at the time of Creation of table.
Can you use "describe" or "describe"?
Note : We can use either DESCRIBE or DESC (both are Case Insensitive ).
How to use sp_columns?
The simplest way to use sp_columns to show the columns and related information about a SQL Server table is to execute the stored proecedure passing it the table name like so:
What is sp_columns stored procedure?
The sp_columns stored procedure can take additional arguments to the table name. You can also pass the table owner, table qualifier (i.e. the database name), column name and the ODBC version used. The table owner and column name parameters support wildcard pattern matching, so you can use % and _
What is SQL command?
SQL commands are the instructions used to communicate with a database to perform tasks, functions, and queries with data. SQL commands can be used to search the database and to do other functions like creating tables, adding data to tables, modifying data, and dropping tables. Here is a list of basic SQL commands (sometimes called clauses) ...
What does "create table" mean?
CREATE TABLE does just what it sounds like: it creates a table in the database. You can specify the name of the table and the columns that should be in the table.
What is sort by in SQL?
ORDER BY gives us a way to sort the result set by one or more of the items in the SELECT section. Here is an SQL sorting the students by FullName in descending order. The default sort order is ascending ( ASC) but to sort in the opposite order (descending) you use DESC.
What is the select part of a query?
The SELECT part of a query determines which columns of the data to show in the results. There are also options you can apply to show data that is not a table column.
When to use like in SQL?
LIKE is used in a WHERE or HAVING (as part of the GROUP BY) to limit the selected rows to the items when a column has a certain pattern of characters contained in it. This SQL will select students that have FullName starting with “Monique” or ending with “Greene”.
Can you place "not before like" in SQL?
You can place NOT before LIKE to exclude the rows with the string pattern instead of selecting them. This SQL excludes records that contain “cer Pau” and “Ted” in the FullName column.
Syntax of SQL Describe Table
How to Describe Table in Sql?
- DESCRIBE can be said as a synonym for the command EXPLAIN TABLE. These both statements when executed will provide information about all table columns.
- Therefore, using DESCRIBE TABLE in SQL it will tell you either about the columns present in that specific table or its current values type and also the default values for a table’s stage properties.
- DESCRIBE can be said as a synonym for the command EXPLAIN TABLE. These both statements when executed will provide information about all table columns.
- Therefore, using DESCRIBE TABLE in SQL it will tell you either about the columns present in that specific table or its current values type and also the default values for a table’s stage properties.
- When we execute DESCRIBE TABLE command in our database we will be able to view the structure of the table in a describe tab but not on the console tab of the system software.
- The SQL DESCRIBE TABLE query will make us to know about the organization of table that consists of name of table column with data type values such as VARCHAR, CHAR, INT, FLOAT, TIME, DATE, NUMBER o...
Conclusion
- The DESCRIBE query in SQL is implemented to display the definitions of a list of columns for a specified database table. SQL DESCRIBE Table command should be executed on only our system software not it any editor because it won’t run there. We need to run this DESCRIBE query on the database installed on our own system server.
Recommended Articles
- This is a guide to SQL DESCRIBE TABLE. Here we discuss the introduction, how to DESCRIBE TABLE in SQL? and examples respectively. You may also have a look at the following articles to learn more – 1. SQL DML Commands 2. What is SQL 3. SQL with Clause 4. SQL TRUNCATE()