If you try to drop a table that doesn’t exist in the database, without using the IF EXISTS clause, as shown below −ĮRROR 1051 (42S02): Unknown table 'mo'
#Openoffice base delete all records in a table software#
Syntaxįollowing is the basic syntax of DROP TABLE IF EXISTS − OpenOffice Calc is an open source free software program with features. If the table does not exist in the database, the query will be ignored. This clause, when specified in the DROP TABLE query, will automatically check whether the table exists in the current database and then drops it, if yes. The Apache OpenOffice User Forum is an user to user help and discussion forum for exchanging information and tips with other users of Apache OpenOffice, the open source office suite. It is possible to delete all rows in a table without deleting the table. Instead of always checking if the table exists or not in a database before dropping it, you can use the IF EXISTS clause in the DROP TABLE statement. Here, TEST is the database name which we are using for our examples. Now, to verify if the table is actually dropped, you can use the 'EXEC sp_help' command as shown −ĮRROR 1146 (42S02): Table 'TEST.CUSTOMERS' doesn't exist This means that the CUSTOMERS table is available in the database, so let us now drop it as shown below. address we would have to remove them from the database and then re-insert them not. | SALARY | decimal(18,2) | YES | | NULL | | In a relational database, all the tables are related by one or more. | Field | Type | Null | Key | Default | Extra | You can select all records by clicking the empty grey box in the corner between row headers and column headers. Let us first verify the CUSTOMERS table and then we will delete it from the database as shown below − In the Base GUI you can delete selected records (Ctrl+click row headers), filtered records, records returned from a query if the primary key is included in the query. The basic syntax of this DROP TABLE statement is as follows −
To drop a table in a database, one must require ALTER permission on the said table and CONTROL permissions on the table schema.Įven though is a data definition language command, it is different from TRUNCATE TABLE statement as the DROP statement completely frees the table from the memory. For example, the following statement deletes all records in a dataset: PhoneTable.EmptyTable Important: Data you delete with EmptyTable is gone forever. For SQL tables, this method only succeeds if you have DELETE privileges for the table.
If you want outside datastage, you can build an SQL with the list and run from sqlplus. To delete all rows of data in a table, call a table component’s EmptyTable method at runtime. Opt for 'delete records only' in the OCI and mentioned the key. You should be very careful while using this command because once a table is deleted then all the information available in that table will also be lost forever. seq file > Transformer (advisable) > OCI. The SQL DROP TABLE statement is a Data Definition Language (DDL) command that is used to remove a table's definition, and its data, indexes, triggers, constraints and permission specifications (if any).
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