How do you drop multiple tables with common prefix in one query?

How do you drop multiple tables with common prefix in one query?

You can build up a string using the catalog views, e.g.: DECLARE @sql NVARCHAR(MAX) = N”; SELECT @sql += ‘ DROP TABLE ‘ + QUOTENAME(s.name) + ‘. ‘ + QUOTENAME(t.name) + ‘;’ FROM sys. tables AS t INNER JOIN sys.

How do I delete all tables in a database?

To delete every row in a table:

1. Use the DELETE statement without specifying a WHERE clause. With segmented table spaces, deleting all rows of a table is very fast.
2. Use the TRUNCATE statement. The TRUNCATE statement can provide the following advantages over a DELETE statement:
3. Use the DROP TABLE statement.

How do I delete multiple tables in database?

In Object Explorer Details, select the tables which you want to delete and either hit the keyboard button DELETE or just go right click on the tables and select the option DELETE.

Can you delete from multiple tables at once SQL?

The syntax also supports deleting rows from multiple tables at once. To delete rows from both tables where there are matching id values, name them both after the DELETE keyword: DELETE t1, t2 FROM t1 INNER JOIN t2 ON t1.id = t2.id; MySQL supports a second multiple-table DELETE syntax.

How do I delete multiple tables in a single query?

You cannot DELETE from multiple tables with a single expression in SQL 2005 – or any other standard SQL for that matter. Access is the exception here. The best method to get this effect is to specify FOREIGN KEYS between the table with an ON DELETE trigger .

Which statement is used to remove indexes on tables?

DROP INDEX statement
The DROP INDEX statement is used to delete an index in a table.

How do I delete all tables in a schema?

How to drop all tables in PostgreSQL?

1. Using SQL Query Editor: You can run these queries to drop the schema and recreate it:
2. 2 From TablePlus GUI: You can select all the available tables from the right sidebar, right click and choose Delete.. , or press Delete key to drop all.

How do I delete all tables?

How to drop all tables in MySQL?

1. SET FOREIGN_KEY_CHECKS = 0;
2. SELECT table_name FROM information_schema.tables WHERE table_schema = db_name;
3. DROP TABLE IF EXISTS table1; DROP TABLE IF EXISTS table2; DROP TABLE IF EXISTS table3;
4. SET FOREIGN_KEY_CHECKS = 1;
5. echo “SET FOREIGN_KEY_CHECKS = 0;” > ./temp.sql.

How do you delete multiple items in SQL?

To delete multiple rows in a table, you use the condition in the WHERE clause to identify the rows that should be deleted. For example, the following statement uses the IN operator to include the dependents of the employees with the id is 100, 101, or 102.

How do I DELETE multiple tables in a single query?

How do I DELETE a row from multiple tables in SQL?

SQL DELETE

1. First, you specify the table name where you want to remove data in the DELETE FROM clause.
2. Second, you put a condition in the WHERE clause to specify which rows to remove. If you omit the WHERE clause, the statement will remove all rows in the table.

How do I DELETE a row in a table that contains foreign keys to other tables?

1-You first need to select rows to delete(in a cursor) 2-Then for each row in the cursor you delete the referencing rows and after that delete the row him self.

How to delete tables with prefix in MySQL?

EDIT: A disclaimer here – the statement generated above will drop all tables in all databases with that prefix. If you want to limit it to a specific database, modify the query to look like this and replace database_name with your own database_name: Some of the earlier answers were very good.

How to drop a table with a prefix in SQL?

This will generate a DROP statement which you can than copy and execute to drop the tables. EDIT: A disclaimer here – the statement generated above will drop all tables in all databases with that prefix.

How to delete multiple tables with common names?

If you want to delete all tables but keep those with names that started with A, B, C or D: This allows you to delete a much greater number of tables.

How to drop multiple tables with common SQL?

Then open that CSV in a notepad. Then do Ctrl+H to replace schema with DROP TABLE SCHEMA that will give you all the drop queries, copy and paste this big sql into your sql tool and execute Thanks for contributing an answer to Database Administrators Stack Exchange!