Αποτελέσματα Αναζήτησης
SELECT * FROM sysobjects WHERE id = object_id(N'function_name') AND xtype IN (N'FN', N'IF', N'TF') DROP FUNCTION function_name. If you want to avoid the sys* tables, you could instead do (from here in example A): DROP FUNCTION function_name.
To remove an existing user-defined function created by the CREATE FUNCTION statement, you use the DROP FUNCTION statement as follows: DROP FUNCTION [ IF EXISTS ] [ schema_name. ] function_name; Code language: SQL (Structured Query Language) (sql) In this syntax:
18 Οκτ 2023 · Learn various ways to check if a SQL Server table exists before trying to drop the table to avoid the table does not exist error.
22 Αυγ 2016 · Create new database object. The new DROP IF EXISTS syntax replaces the old block of code that used system catalog views to determine the existence of an object. Basically, the new syntax combines steps one and two into a smaller set of code to produce the same results.
13 Σεπ 2024 · DROP DATABASE [ IF EXISTS ] { database_name | database_snapshot_name } [ ,...n ] [ ; ] Azure SQL Database, Azure Synapse Analytics, and Analytics Platform System syntax. DROP DATABASE database_name [ ; ] Arguments IF EXISTS. Applies to: SQL Server 2016 (13.x) and later versions. Conditionally drops the database only if it already exists ...
3 Μαρ 2020 · This article walks through different versions of the T-SQL IF EXISTS statement for the SQL database using various examples. IF EXISTS in SQL 2014 or before. DROP ..IF EXISTS in SQL Server 2016 to SQL Server 2019. Introduction. Suppose you want to deploy objects such as tables, procedures, functions in the SQL Server database.
BEGIN; DELETE FROM messages WHERE messageid = 1; DELETE FROM usermessages WHERE messageid = 1; COMMIT; Or, you could have ON DELETE CASCADE set up with a foreign key. This is the better approach.
