Jun 7, 2017 · In MySQL you can use DESCRIBE <table_name> You can get details like column datatype and size by this query. Note that this command runs extremely slow in case you have …

May 10, 2023 · Since in a database, we have tables, that’s why do we use DESCRIBE or DESC (both are the same) commands to describe the structure of a table. Syntax: Note: We can use either DESCRIBE or DESC (both are Case Insensitive). Suppose our table whose name is one has 4 columns named id, name, email, and age and all are of can contain null values. Query:

Aug 18, 2013 · Using ADO.NET, you can use the schema methods. Use the DbConnection 's GetSchema method or the DataReader 's GetSchemaTable method. Provided that you have a reader for the for the query, you can do something like this: using(DbCommand cmd = ...) var schema = reader.GetSchemaTable(); foreach(DataRow row in schema.Rows)

Sep 11, 2019 · To show the table structure with all its column’s attributes: name, datatype, primary key, default value, etc. In SQL Server, use sp_help function: In MySQL and Oracle, …

Feb 11, 2013 · sp_help will give you a whole bunch of information about a table including the columns, keys and constraints. For example, running. will give you information about Address. Name and datatype: sc.name AS [Columne Name], . st1.name AS [User Type], st2.name AS [Base Type] INNER JOIN dbo.systypes st1 ON st1.xusertype = sc.xusertype.

Aug 5, 2002 · Using this query you can have the complete table structure for all the user tables with Table Name, Column Name, Data Type, and Null attributes of a column.

Mar 7, 2018 · Microsoft SQL Server is a relational database management systems (RDBMS) that, at its fundamental level, stores the data in tables. The tables are the database objects that behave as containers for the data, in which the data will be logically organized in …

Jan 25, 2024 · The DESCRIBE statement is a simple and quick way to view the basic structure of a table, providing a set of essential details for each column such as field type, nullability, default values, and primary or unique keys.

The CREATE TABLE statement is used to create a new table in a database. .... The column parameters specify the names of the columns of the table. The datatype parameter specifies the type of data the column can hold (e.g. varchar, integer, date, etc.). Tip: For an overview of the available data types, go to our complete Data Types Reference.

1 day ago · Common Table Expression (CTE) might offer a simple solution. Think of CTEs as a way to bring structure, clarity, and elegance to your SQL statements. They are a powerful feature, available in almost every relational database system, designed to simplify complex queries and make your SQL code significantly more understandable.