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DroppingTo delete indices, tables or databases, the DROP command is used in its variations: To delete an index (where the CREATE INDEX syntax is used), the syntax is: DROP INDEX name To drop a table the syntax is: DROP TABLE name The table, its contents and definition will be deleted from the database irrevocably. To drop a database altogether (where supported), you can use DROP DATABASE name The pike SQL-interface provides a specific-purpose function to drop a database: this is mainly for compatibility with MiniSQL where the operation of dropping a database is demanded to a specific-purpose API function, named drop_db. Using SQL: object db = Sql.sql("mysql://admin:pass@localhost");
mixed exception;
exception = catch {
db->query("DROP DATABASE test");
};
if(exception)
{
werror("Error while dropping the database: "+db->error()+"\n");
throw(exception);
}
Using the API functions: object db=Sql.sql("msql://admin:pass@localhost");
mixed exception;
exception=catch {
db->drop_db("test");
};
if(exception)
{
werror("Error while dropping the database: "+db->error()+"\n");
throw(exception);
}
Notice that I haven't either tried to fetch results (there's no result to fetch anyways) and the exception handling has been very limited, and for diagnostic purposes only: these operations are really meant to be used only interactively. |
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