How can I retrieve the table structure from a sql database? [duplicate] - sql

This question already has answers here:
Describe table structure
(13 answers)
Closed 3 years ago.
So basically I want a SQL Command that return every column in the table and the datatype that is in that column and whether is nullable.

You can use information schema.
SELECT
COLUMN_NAME,
DATA_TYPE,
IS_NULLABLE
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = 'yourTableName'

Related

list all columns in table using SQL [duplicate]

This question already has answers here:
How do I list all the columns in a table?
(12 answers)
Closed 1 year ago.
How to list all columns using SQL query?
select column_name, data_type, character_maximum_length
from INFORMATION_SCHEMA.COLUMNS
where table_name = '**table_name**';

How to search a column name in all tables in a database in SQL Server 2012? [duplicate]

This question already has answers here:
SQL Server search for a column by name
(6 answers)
Closed 7 years ago.
Is it possible to search like below:
Like '%tax%'
Try the below
Select distinct object_name(object_id), name from sys.columns where name like '%tax%'
or
select table_name, Column_name from Information_Schema.Columns where Column_Name like '%Tax%'

Query that fetches all table names & column names in a schema [duplicate]

This question already has answers here:
Get list of all tables in Oracle?
(24 answers)
Closed 8 years ago.
I want to retrieve all table names and column names IN A SCHEMA. So if I am in schema scott it should only show all the tables present in scott.
And can the query below only retrieve the tables in a schema?
Select * from tab;
select *
from all_tab_columns
where owner = 'SCOTT'
More details in the manual: http://docs.oracle.com/cd/E11882_01/server.112/e25513/statviews_part.htm#i125539
This query should work:
SELECT *
FROM INFORMATION_SCHEMA.COLUMNS

How can I SELECT that lists all the field names and their types for a given Db Table? [duplicate]

This question already has answers here:
Closed 11 years ago.
Possible Duplicate:
SQL Server: How do you return the column names from a table?
Assume that I have Data base table: LunchMenuItems
For the MS-SQL Server, how can I write a TSQL query that :
Lists all the column names and their types in LunchMenuItems table?
Description
This Information can be found in information_schema.columns.
Sample
select column_name, DATA_TYPE from information_schema.columns
where table_name = 'LunchMenuItems'
More Information
COLUMNS (Transact-SQL)

Finding the column in tables? [duplicate]

This question already has answers here:
Closed 11 years ago.
Possible Duplicate:
SQL Server 2008: find all tables containing column with specified name
Hi all,
I have 30 tables in my database, in some of tables i have a common column, assume 'eno'. How can i find the tables of 'eno'. Thank you...
You could use the INFORMATION_SCHEMA.COLUMNS system view:
SELECT DISTINCT table_name
FROM information_schema.columns
WHERE column_name = 'eno'