Search results
Oct 4, 2019 · 9. SQL Server 2016 and above the best and simple one is DROP TABLE IF EXISTS [TABLE NAME] Ex: DROP TABLE IF EXISTS dbo.Scores. if suppose the above one is not working then you can use the below one. IF OBJECT_ID('dbo.Scores', 'u') IS NOT NULL. DROP TABLE dbo.Scores; edited Mar 31, 2022 at 18:22.
The Best Answer to dropping the table containing foreign constraints is : Step 1 : Drop the Primary key of the table. Step 2 : Now it will prompt whether to delete all the foreign references or not. Step 3 : Delete the table. edited Apr 25, 2014 at 19:53.
9. Delete v/s Drop. Delete statement performs conditional based deletion, whereas Drop command deletes entire records in the table. Delete statement removes only the rows in the table and it preserves the table structure as same, and Drop command removes all the data in the table and the table structure.
Mar 28, 2018 · You can try this code below. If you are working on a real product or something like that, please run it on a test environment first. Also make sure your userid has the permission of dropping a table in the database. DECLARE @cmd varchar(4000) DECLARE cmds CURSOR FOR. SELECT 'drop table [' + Table_Name + ']'. FROM INFORMATION_SCHEMA.TABLES.
Mar 10, 2016 · For this specific case, drop_all() would work, but it won't be convenient from the moment I start having more than one table and I want to keep the other ones. python sqlite
Mar 10, 2016 · That's SQL Server 2016 syntax. For earlier versions, you can use the EXISTS function to check whether your table exists in the sys.tables list and drop it if it does.
2. TRUNCATE TABLE table_name. Is a DDL (Data Definition Language), you can delete all data and clean identity. If you want to use this, you need DDL privileges in table. DDL statements example: CREATE, ALTER, DROP, TRUNCATE, etc. DELETE FROM table_name / DELETE FROM table_name WHERE 1=1 (is the same) Is a DML (Data Manipulation Language), you ...
Dec 22, 2014 · Use the INFORMATION_SCHEMA.TABLES view to get the list of tables. Generate Drop scripts in the select statement and drop it using Dynamic SQL: DECLARE @sql NVARCHAR(max)=''. SELECT @sql += ' Drop table ' + QUOTENAME(TABLE_SCHEMA) + '.'+ QUOTENAME(TABLE_NAME) + '; '. FROM INFORMATION_SCHEMA.TABLES.
Feb 6, 2021 · A lazy way of doing this if there are alot of tables to be deleted. Get table using the below. For sql server - SELECT CONCAT (name,',') Table_Name FROM SYS.tables; For oralce - SELECT CONCAT (TABLE_NAME,',') FROM SYS.ALL_TABLES; Copy and paste the table names from the result set and paste it after the DROP command. answered Feb 24, 2020 at 16:59.
Jan 22, 2014 · 241. From SQL Server 2016 you can just use. DROP TABLE IF EXISTS ##CLIENTS_KEYWORD. On previous versions you can use. client_id INT. You could also consider truncating the table instead rather than dropping and recreating. TRUNCATE TABLE ##CLIENTS_KEYWORD. CREATE TABLE ##CLIENTS_KEYWORD. client_id INT.
