PHP Databases Handling Which one of the following methods recuperates any memory consumed by a result set? free() destroy() alloc() remover() free() destroy() alloc() remover() ANSWER DOWNLOAD EXAMIANS APP
PHP Databases Handling Which method rolls back the present transaction? rollback() undo() commit() back() rollback() undo() commit() back() ANSWER DOWNLOAD EXAMIANS APP
PHP Databases Handling What does the DESC keyword do in the following query?SELECT * FROM MY_TABLE WHERE ID > 0 ORDER BY ID, NAME DESC It causes rows with the same ID to be sorted by NAME in ascending order It causes the result set to include a description of the NAME field It causes the dataset returned by the query to be sorted in descending order It causes rows with the same ID to be sorted by NAME in descending order It causes rows with the same ID to be sorted by NAME in ascending order It causes the result set to include a description of the NAME field It causes the dataset returned by the query to be sorted in descending order It causes rows with the same ID to be sorted by NAME in descending order ANSWER DOWNLOAD EXAMIANS APP
PHP Databases Handling If there is no error, then what will the error() method return? FALSE Empty String 0 TRUE FALSE Empty String 0 TRUE ANSWER DOWNLOAD EXAMIANS APP
PHP Databases Handling What will happen at the end of the following sequence of SQL commands?BEGIN TRANSACTIONDELETE FROM MYTABLE WHERE ID=1DELETE FROM OTHERTABLEROLLBACK TRANSACTION The database will remain unchanged The contents of both OTHERTABLE and MYTABLE will be deleted The contents of OTHERTABLE will be deleted The contents of OTHERTABLE will be deleted, as will be all the contents of MYTABLE whose ID is 1 The database will remain unchanged The contents of both OTHERTABLE and MYTABLE will be deleted The contents of OTHERTABLE will be deleted The contents of OTHERTABLE will be deleted, as will be all the contents of MYTABLE whose ID is 1 ANSWER DOWNLOAD EXAMIANS APP
PHP Databases Handling SQL is not case sensitive. SELECT is the same as select. False True False True ANSWER DOWNLOAD EXAMIANS APP
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