It undoes the update command.

It returns an error because there is no active transaction.

It undoes the insert command.

It undoes both insert and update commands.

It has no effect.

timestamp has larger range of values.

timestamp uses less storage space.

timestamp stores more decimal points in seconds

timestamp converts the value based on the session time zone.

timestamp stores the interval between two dates.

mysqli supports object oriented programming.

mysqli can access databases from other vendors.

mysqli supports non blocking, asynchronous queries.

mysqli includes X DevAPI functions.

The underlying table ' s index on the Name column is not chosen because of low selectivity.

myview cannot be automatically indexed.

myview was defined with the temptable processing algorithm.

Column Name in myview can be indexed if the is_updatable attribute is true.

Additional queries on the same session are blocked until the result set is released.

Results are sent from the server to the browser for buffering.

Buffered queries are enabled by default.

Buffered queries should be used on large tables when the result size is unknown.

Results are sent to the calling PHP process for buffering.

Buffered queries must be explicitly enabled using mysqliuseresult.

Large results can have a negative impact on performance.

Option A

Option B

Option C

Option D

CREATE INDEX 1X7 ON users (user_name) USING HASH;

CREATE INDEX 1X4 ON Locations (site_id, loc_shared);

CREATE INDEX IX1 ON locations (loc_shareci) ;

CREATE INDEX 1X6 ON users (user_name);

CREATE INDEX 1X3 ON locations < loc_site_id) ;

CREATE INDEX 1X2 ON locations (loc_mapping) USING HASH; fH

CREATE INDEX 1X5 ON users (loc_id);

The column must be a generated column referencing any attribute of doc.

The column must have a default value.

The column must be used in a unique constraint.

The column must be a generated column referencing only an existing attribute of doc.

The column must be indexed.

The select requires json_unquoteo in the where clause.

The virtual values in the name column must be accessed using functions.

The JSON datatype cannot be used in virtual columns.

The json_extract() function requires a length value that matches the field length in the schema.

Table statistics must be updated to generate values for the name column.