So it's safer to always explicitly specify column names in SELECT statements for production code. Any of the T-SQL code below will work in SQL Server 2019: - here, you need to prefix the database name in INFORMATIONSCHEMA.TABLES SELECT TABLENAME FROM - The next 2 ways will require you to point - to the specific database you want to list the tables USE MSSQL-TEST - (1) Using sys.tables SELECT FROM sys.tables - (2) Using sysobjects SELECT. Warning: Using SELECT * in production code or stored procedures can lead to problems later on (as new columns are added to the table, or if columns are rearranged in the table), especially if your code makes simple assumptions about the order of columns, or number of columns returned. However, it is common for a database to have multiple schema, and in these cases the schema name should not be omitted when possible. Note that the fields before table_name can be omitted in many cases if the queries are executed on a single server, database and schema, respectively. This is not necessarily recommended, as changing the server and/or database names would cause the queries using fully-qualified names to no longer execute due to invalid object names. * ": SELECT e.*, d.DepartmentNameĭatabase objects may also be accessed using fully qualified names: SELECT * FROM.
Or if you wanted to select all from a specific table you can use the alias + ". This would also work the same way if you added an alias to the table, for instance e in this case: SELECT * All rows will also be selected because this SELECT statement does not have a WHERE clause, to specify any filtering criteria. Using the asterisk operator * serves as a shortcut for selecting all the columns in the table.
Retrieve Information about your Instance.Retrieve information about the database.Microsoft SQL Server Management Studio Shortcut Keys.Export data in txt file by using SQLCMD.Delimiting special characters and reserved words.Getting started with Microsoft SQL Server.
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