sqlsrv_next_result
讓指定陳述式的下一個結果 (結果集、資料列計數或輸出參數) 成為作用中。
注意
批次查詢或預存程序所傳回的第一個 (或唯一) 結果為作用中,而不需要呼叫 sqlsrv_next_result。
語法
sqlsrv_next_result( resource $stmt )
參數
$stmt:已執行且下一個結果已成為作用中的陳述式。
傳回值
如果下一個結果已成功成為作用中,將會傳回布林值 true 。 如果在讓下一個結果成為作用中時發生錯誤,則傳回 false 。 如果沒有其他結果可供使用,則傳回 null 。
範例 1
下列範例會建立並執行一個預存程序,將產品評論插入 Production.ProductReview 資料表中,然後選取指定產品的所有評論。 執行預存程序之後,將會取用第一個結果 (預存程序中的 INSERT 查詢所影響的資料列數目),而不會呼叫 sqlsrv_next_result。 下一個結果 (預存程序中的 SELECT 查詢所傳回的資料列) 可藉由呼叫 sqlsrv_next_result 成為可用結果,並可透過 sqlsrv_fetch_array 加以取用。
注意
使用標準語法呼叫預存程序,是建議的做法。 如需標準語法的詳細資訊,請參閱呼叫預存程序。
此範例假設本機電腦上已安裝 SQL Server 和 AdventureWorks 資料庫。 從命令列執行範例時,所有輸出都會寫入至主控台。
<?php
/* Connect to the local server using Windows Authentication and
specify the AdventureWorks database as the database in use. */
$serverName = "(local)";
$connectionInfo = array( "Database"=>"AdventureWorks");
$conn = sqlsrv_connect( $serverName, $connectionInfo);
if( $conn === false )
{
echo "Could not connect.\n";
die( print_r( sqlsrv_errors(), true));
}
/* Drop the stored procedure if it already exists. */
$tsql_dropSP = "IF OBJECT_ID('InsertProductReview', 'P') IS NOT NULL
DROP PROCEDURE InsertProductReview";
$stmt1 = sqlsrv_query( $conn, $tsql_dropSP);
if( $stmt1 === false )
{
echo "Error in executing statement 1.\n";
die( print_r( sqlsrv_errors(), true));
}
/* Create the stored procedure. */
$tsql_createSP = " CREATE PROCEDURE InsertProductReview
@ProductID int,
@ReviewerName nvarchar(50),
@ReviewDate datetime,
@EmailAddress nvarchar(50),
@Rating int,
@Comments nvarchar(3850)
AS
BEGIN
INSERT INTO Production.ProductReview
(ProductID,
ReviewerName,
ReviewDate,
EmailAddress,
Rating,
Comments)
VALUES
(@ProductID,
@ReviewerName,
@ReviewDate,
@EmailAddress,
@Rating,
@Comments);
SELECT * FROM Production.ProductReview
WHERE ProductID = @ProductID;
END";
$stmt2 = sqlsrv_query( $conn, $tsql_createSP);
if( $stmt2 === false)
{
echo "Error in executing statement 2.\n";
die( print_r( sqlsrv_errors(), true));
}
/*-------- The next few steps call the stored procedure. --------*/
/* Define the Transact-SQL query. Use question marks (?) in place of the
parameters to be passed to the stored procedure */
$tsql_callSP = "{call InsertProductReview(?, ?, ?, ?, ?, ?)}";
/* Define the parameter array. */
$productID = 709;
$reviewerName = "Customer Name";
$reviewDate = "2008-02-12";
$emailAddress = "customer@email.com";
$rating = 3;
$comments = "[Insert comments here.]";
$params = array(
$productID,
$reviewerName,
$reviewDate,
$emailAddress,
$rating,
$comments
);
/* Execute the query. */
$stmt3 = sqlsrv_query( $conn, $tsql_callSP, $params);
if( $stmt3 === false)
{
echo "Error in executing statement 3.\n";
die( print_r( sqlsrv_errors(), true));
}
/* Consume the first result (rows affected by INSERT query in the
stored procedure) without calling sqlsrv_next_result. */
echo "Rows affectd: ".sqlsrv_rows_affected($stmt3)."-----\n";
/* Move to the next result and display results. */
$next_result = sqlsrv_next_result($stmt3);
if( $next_result )
{
echo "\nReview information for product ID ".$productID.".---\n";
while( $row = sqlsrv_fetch_array( $stmt3, SQLSRV_FETCH_ASSOC))
{
echo "ReviewerName: ".$row['ReviewerName']."\n";
echo "ReviewDate: ".date_format($row['ReviewDate'],
"M j, Y")."\n";
echo "EmailAddress: ".$row['EmailAddress']."\n";
echo "Rating: ".$row['Rating']."\n\n";
}
}
elseif( is_null($next_result))
{
echo "No more results.\n";
}
else
{
echo "Error in moving to next result.\n";
die(print_r(sqlsrv_errors(), true));
}
/* Free statement and connection resources. */
sqlsrv_free_stmt( $stmt1 );
sqlsrv_free_stmt( $stmt2 );
sqlsrv_free_stmt( $stmt3 );
sqlsrv_close( $conn );
?>
執行具有輸出參數的預存程序時,建議您先取用所有其他結果,再存取輸出參數的值。 如需詳細資訊,請參閱 如何:使用 SQLSRV 驅動程式指定參數方向。
範例 2
下列範例會執行一個批次查詢,擷取指定產品識別碼的產品評論資訊、插入產品的評論,然後再次擷取指定產品識別碼的產品評論資訊。 新插入的產品評論將包含在批次查詢的最終結果集內。 此範例會使用 sqlsrv_next_result ,從批次查詢的一個結果移至下一個。
注意
批次查詢或預存程序所傳回的第一個 (或唯一) 結果為作用中,而不需要呼叫 sqlsrv_next_result。
此範例會使用 AdventureWorks 資料庫的 Purchasing.ProductReview 資料表,並假設此資料庫已安裝在伺服器上。 從命令列執行範例時,所有輸出都會寫入至主控台。
<?php
/* Connect to the local server using Windows Authentication and
specify the AdventureWorks database as the database in use. */
$serverName = "(local)";
$connectionInfo = array( "Database"=>"AdventureWorks");
$conn = sqlsrv_connect( $serverName, $connectionInfo);
if( $conn === false )
{
echo "Could not connect.\n";
die( print_r( sqlsrv_errors(), true));
}
/* Define the batch query. */
$tsql = "--Query 1
SELECT ProductID, ReviewerName, Rating
FROM Production.ProductReview
WHERE ProductID=?;
--Query 2
INSERT INTO Production.ProductReview (ProductID,
ReviewerName,
ReviewDate,
EmailAddress,
Rating)
VALUES (?, ?, ?, ?, ?);
--Query 3
SELECT ProductID, ReviewerName, Rating
FROM Production.ProductReview
WHERE ProductID=?;";
/* Assign parameter values and execute the query. */
$params = array(798,
798,
'CustomerName',
'2008-4-15',
'test@customer.com',
3,
798 );
$stmt = sqlsrv_query($conn, $tsql, $params);
if( $stmt === false )
{
echo "Error in statement execution.\n";
die( print_r( sqlsrv_errors(), true));
}
/* Retrieve and display the first result. */
echo "Query 1 result:\n";
while( $row = sqlsrv_fetch_array( $stmt, SQLSRV_FETCH_NUMERIC ))
{
print_r($row);
}
/* Move to the next result of the batch query. */
sqlsrv_next_result($stmt);
/* Display the result of the second query. */
echo "Query 2 result:\n";
echo "Rows Affected: ".sqlsrv_rows_affected($stmt)."\n";
/* Move to the next result of the batch query. */
sqlsrv_next_result($stmt);
/* Retrieve and display the third result. */
echo "Query 3 result:\n";
while( $row = sqlsrv_fetch_array( $stmt, SQLSRV_FETCH_NUMERIC ))
{
print_r($row);
}
/* Free statement and connection resources. */
sqlsrv_free_stmt( $stmt );
sqlsrv_close( $conn );
?>