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18 Αυγ 2013 · There are different ways to get the schema. 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 = ...)
18 Ιουν 2019 · Proper formatting helps your SQL code be easier to read and helps prevent errors when making changes to your code. In this article I presented some of the rules recommended by experts which help you in writing clearer code.
11 Σεπ 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: sp_help [ [ @objname = ] table_name ] In MySQL and Oracle, you can use DESCRIBE: DESCRIBE table_name; Or. DESC table_name; In PostgreSQL, here is the go-to statement: SELECT. * FROM.
25 Ιαν 2024 · Querying the INFORMATION_SCHEMA.TABLES view provides metadata about your tables. You can find properties such as table type, storage engine, row format, and table version among others. Establish a connection to MySQL through your preferred client or terminal.
28 Ιουν 2023 · Here’s a quick rundown of how these methods work for each DBMS: MySQL and MariaDB: SHOW TABLES; PostgreSQL: \dt. SQL Server: SELECT * FROM sys.tables; OR SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE='BASE TABLE'; SQLite: SELECT name FROM sqlite_master WHERE type='table';
22 Ιουλ 2024 · SELECT s.name as schema_name, t.name as table_name, c.* FROM sys.columns AS c INNER JOIN sys.tables AS t ON t.object_id = c.object_id INNER JOIN sys.schemas AS s ON s.schema_id = t.schema_id WHERE t.name = 'mytable' AND s.name = 'dbo'; Related content. sys.columns (Transact-SQL) sys.tables (Transact-SQL) sys.schemas (Transact-SQL)
7 Μαρ 2018 · In this article, we described, in detail, the structure of the SQL Server main data storage unit, the table. We mentioned also the different types of user-defined tables that can be used to store your data.
