From sql server 2016 ctp3 you can use new die statements instead of big if wrappers eg. Conditionally drops the table only if it already exists.
In this article i will provide examples of dropping objects like database table procedure view and function along with dropping columns and constraintslets start with creating a database and these objects.
Drop table if exists. Drop table if exists are always logged. Drop table if exists dboproduct drop trigger if exists trproductinsert. Tablename is the name of the table to be removed.
Now we will see how to drop temporary table if exists in the server. The truncate table statement is used to delete the data inside a table but not the table itself. I dont like these and if you also dont like them then you might try new drop if exists aka.
Sql server sql server 2016 13x through current version. If it does exists then it will try to drop the table. If exists applies to.
Drop table cannot be used to drop a table that is referenced by a foreign key. Lets walk through with few examples of important database objects to see how we can use drop if exists option effectively. Drop table in replication.
Drop table without if exists for tables that dont exist are not written to the binary log. In my earlier article i have explained how to drop database objects including regular tables only if existsin that article unfortunately i have not mentioned about temporary or temp tables. The drop table statement deletes the specified table and any data associated with it from the database.
The drop table statement is used to drop an existing table in a database. As i have mentioned earlier if exists in drop statement can be used for several objects. Die statements in sql server 2016.
Dropping of temporary tables are prefixed in the log with temporarythese drops are only logged when running statement or mixed mode replication. Schemaname is the name of the schema to which the table belongs. In the following example the first statement will check if a table named test exists in the tempdb database.
Be careful before dropping a table. Drop table if exists dbocustomers. Examples of using drop if exists.
Drop table if exists also read how to check if a table exists. Deleting a table will result in loss of complete information stored in the table. Write the correct sql statement to delete a table.
If the table doesnt exists it will not raise any error it will continue executing the next statement in the batch. In sql server 2016 we can write a statement like below to drop a table if exists. Creating dropping table using drop table if exists.
Drop table has the following characteristics in replication. The if exists clause allows the statement to succeed even if the specified tables does not exist.