下面( )函数从结果集中取得一行记录,返回的只是数字索引数组。 A: mysqli_query B: mysqli_fetch_array C: mysqli fetch row D: mysqli fetch assoc
下面( )函数从结果集中取得一行记录,返回的只是数字索引数组。 A: mysqli_query B: mysqli_fetch_array C: mysqli fetch row D: mysqli fetch assoc
下列PHP代码用来查询mysql数据库中的student表,若能正常连接数据库,下列( )选项能正确执行$sql的查询语句。 <?php …… $conn = new mysqli($servername, $username, $password, $dbname); $sql ="select * from student"; ( ); …… A: mysqli_query($conn, $sql); B: $conn->execute($sql); C: $conn->query($sql); D: query($sql);
下列PHP代码用来查询mysql数据库中的student表,若能正常连接数据库,下列( )选项能正确执行$sql的查询语句。 <?php …… $conn = new mysqli($servername, $username, $password, $dbname); $sql ="select * from student"; ( ); …… A: mysqli_query($conn, $sql); B: $conn->execute($sql); C: $conn->query($sql); D: query($sql);
能够选取一个数据库功能所对应的函数有 A: mysqli_connect() B: mysqli_select_db() C: mysqli _error() D: mysqli_query()
能够选取一个数据库功能所对应的函数有 A: mysqli_connect() B: mysqli_select_db() C: mysqli _error() D: mysqli_query()
假设已经通过MySQLi扩展建立与数了据库的连接,连接对象是$mysqli。现在请写出代码:执行查询语句"SELECT * FROM student",然后输出查询结果的行数。 A: $result = $mysqli->query("SELECT * FROM student"); echo $mysqli->num_rows; B: $result = $mysqli->query("SELECT * FROM student"); echo $mysqli->$num_rows; C: $result = $mysqli->query("SELECT * FROM student"); echo $result->num_rows; D: $result = $mysqli->query("SELECT * FROM student"); echo $result->$num_rows;
假设已经通过MySQLi扩展建立与数了据库的连接,连接对象是$mysqli。现在请写出代码:执行查询语句"SELECT * FROM student",然后输出查询结果的行数。 A: $result = $mysqli->query("SELECT * FROM student"); echo $mysqli->num_rows; B: $result = $mysqli->query("SELECT * FROM student"); echo $mysqli->$num_rows; C: $result = $mysqli->query("SELECT * FROM student"); echo $result->num_rows; D: $result = $mysqli->query("SELECT * FROM student"); echo $result->$num_rows;
以下PHP代码,用来查询mysql数据库中的User表,若能正常连接数据库,则以下选项中能正确执行$sql的查询语句的是()[br][/br][?php<br]……[br][/br]$conn = new mysqli($servername, $username, $password, $dbname);[br][/br]$sql ="select * from User";[br][/br]( ); A: mysqli_query($conn, $sql); B: $conn->execute($sql); C: $conn->query($sql); D: query($sql);
以下PHP代码,用来查询mysql数据库中的User表,若能正常连接数据库,则以下选项中能正确执行$sql的查询语句的是()[br][/br][?php<br]……[br][/br]$conn = new mysqli($servername, $username, $password, $dbname);[br][/br]$sql ="select * from User";[br][/br]( ); A: mysqli_query($conn, $sql); B: $conn->execute($sql); C: $conn->query($sql); D: query($sql);
假设已经通过MySQLi扩展建立与数了据库的连接,连接对象是$mysqli。现在请写出代码,将连接的默认字符集设置为utf8。 A: $mysqli->query("SET NAMES ‘utf8’"); B: $mysqli.select_charset("utf8"); C: $mysqli->select_charset("utf8"); D: $mysqli.set_charset("utf8");
假设已经通过MySQLi扩展建立与数了据库的连接,连接对象是$mysqli。现在请写出代码,将连接的默认字符集设置为utf8。 A: $mysqli->query("SET NAMES ‘utf8’"); B: $mysqli.select_charset("utf8"); C: $mysqli->select_charset("utf8"); D: $mysqli.set_charset("utf8");
以下PHP代码,用来查询mysql数据库中的User表,若能正常连接数据库,则以下选项中能正确执行$sql的查询语句的是()。 A: mysqli_query($conn, $sql); B: $conn->execute($sql); C: $conn->query($sql); D: query($sql);
以下PHP代码,用来查询mysql数据库中的User表,若能正常连接数据库,则以下选项中能正确执行$sql的查询语句的是()。 A: mysqli_query($conn, $sql); B: $conn->execute($sql); C: $conn->query($sql); D: query($sql);
Methods to query content-based video include ____________________, ____________________, ____________________, ____________________, ____________________ and Concept query (query by keyword).
Methods to query content-based video include ____________________, ____________________, ____________________, ____________________, ____________________ and Concept query (query by keyword).
In Access2016, the data source of the query can be (). A: Table B: Query C: Table, query and report D: Table and query
In Access2016, the data source of the query can be (). A: Table B: Query C: Table, query and report D: Table and query
The following () does not belong to the operation query. A: Parameter query B: Generate table query C: Update query D: Delete query
The following () does not belong to the operation query. A: Parameter query B: Generate table query C: Update query D: Delete query