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Code Issues Releases Wiki Activity

MS SQL pagination

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git-svn-id: https://adminer.svn.sourceforge.net/svnroot/adminer/trunk@1485 7c3ca157-0c34-0410-bff1-cbf682f78f5c
This commit is contained in:
jakubvrana
2010-04-23 09:04:05 +00:00
parent 341362a8fa
commit 1b144a12dd
2 changed files with 35 additions and 10 deletions
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30
adminer/drivers/mssql.inc.php
View File

@@ -125,6 +125,12 @@ if (isset($_GET["mssql"])) {
$return->type = ($field["Type"] == 1 ? 254 : 0);
return $return;
}
function seek($offset) {
for ($i=0; $i < $offset; $i++) {
sqlsrv_fetch($this->_result); // SQLSRV_SCROLL_ABSOLUTE added in sqlsrv 1.1
}
}
function __destruct() {
sqlsrv_free_stmt($this->_result);
@@ -216,6 +222,10 @@ if (isset($_GET["mssql"])) {
return $return;
}
function seek($offset) {
mssql_data_seek($this->_result, $offset);
}
function __destruct() {
mssql_free_result($this->_result);
}
@@ -242,10 +252,10 @@ if (isset($_GET["mssql"])) {
}
function limit($query, $limit, $offset = 0) {
return (isset($limit) ? " TOP ($limit)" : "") . " $query"; //! offset
return (isset($limit) ? " TOP (" . ($limit + $offset) . ")" : "") . " $query"; // seek later
}
function limit1($query, $limit, $offset = 0) {
function limit1($query) {
return limit($query, 1);
}
@@ -297,7 +307,11 @@ if (isset($_GET["mssql"])) {
function fields($table) {
global $connection;
$return = array();
$result = $connection->query("SELECT * FROM information_schema.COLUMNS WHERE TABLE_NAME = " . $connection->quote($table));
$result = $connection->query("SELECT i.*, c.is_identity
FROM information_schema.COLUMNS i
JOIN sys.columns c ON OBJECT_NAME(c.object_id) = i.TABLE_NAME AND c.name = i.COLUMN_NAME
WHERE i.TABLE_NAME = " . $connection->quote($table)
);
while ($row = $result->fetch_assoc()) {
$return[$row["COLUMN_NAME"]] = array(
"field" => $row["COLUMN_NAME"],
@@ -306,9 +320,10 @@ if (isset($_GET["mssql"])) {
"length" => $row["CHARACTER_MAXIMUM_LENGTH"], //! NUMERIC_, DATETIME_?
"default" => $row["COLUMN_DEFAULT"],
"null" => ($row["IS_NULLABLE"] == "YES"),
"auto_increment" => $row["is_identity"],
"collation" => $row["COLLATION_NAME"],
"privileges" => array("insert" => 1, "select" => 1, "update" => 1),
//! primary - is_identity in sys.columns
"primary" => $row["is_identity"], //! or indexes.is_primary_key
);
}
return $return;
@@ -371,13 +386,18 @@ WHERE OBJECT_NAME(indexes.object_id) = " . $connection2->quote($table)
if ($collation) {
queries("ALTER DATABASE " . idf_escape(DB) . " COLLATE " . idf_escape($collation));
}
return queries("ALTER DATABASE " . idf_escape(DB) . " MODIFY NAME = " . idf_escape($name)); //! false negative "The database name 'test2' has been set."
queries("ALTER DATABASE " . idf_escape(DB) . " MODIFY NAME = " . idf_escape($name));
return true; //! false negative "The database name 'test2' has been set."
}
function auto_increment() {
return " IDENTITY";
}
function insert_into($table, $set) {
return queries("INSERT INTO " . idf_escape($table) . ($set ? " (" . implode(", ", array_keys($set)) . ")\nVALUES (" . implode(", ", $set) . ")" : "DEFAULT VALUES"));
}
function explain($connection, $query) {
$connection->query("SET SHOWPLAN_ALL ON");
$return = $connection->query($query);

15
adminer/select.inc.php
View File

@@ -189,6 +189,9 @@ if (!$columns) {
if (!$result) {
echo "<p class='error'>" . error() . "\n";
} else {
if ($driver == "mssql") {
$result->seek($limit * $page);
}
$email_fields = array();
echo "<form action='' method='post' enctype='multipart/form-data'>\n";
$rows = array();
@@ -196,10 +199,12 @@ if (!$columns) {
$rows[] = $row;
}
// use count($rows) without LIMIT, COUNT(*) without grouping, FOUND_ROWS otherwise (slowest)
$found_rows = (intval($limit) && $group && count($group) < count($select)
? ($driver == "sql" ? $connection->result(" SELECT FOUND_ROWS()") : $connection->result("SELECT COUNT(*) FROM ($query) x")) // space to allow mysql.trace_mode
: count($rows)
);
if ($_GET["page"] != "last") {
$found_rows = (intval($limit) && $group && count($group) < count($select)
? ($driver == "sql" ? $connection->result(" SELECT FOUND_ROWS()") : $connection->result("SELECT COUNT(*) FROM ($query) x")) // space to allow mysql.trace_mode
: count($rows)
);
}
if (!$rows) {
echo "<p class='message'>" . lang('No rows.') . "\n";
@@ -296,7 +301,7 @@ if (!$columns) {
if ($rows || $page) {
$exact_count = true;
if (intval($limit) && count($group) >= count($select) && ($found_rows >= $limit || $page)) {
if ($_GET["page"] != "last" && intval($limit) && count($group) >= count($select) && ($found_rows >= $limit || $page)) {
$found_rows = $table_status["Rows"];
if (!isset($found_rows) || $where || 2 * $page * $limit > $found_rows || ($table_status["Engine"] == "InnoDB" && $found_rows < 1e4)) {
// slow with big tables