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                >一般情況下建議采用model來操作MYSQL數據庫 <br/> ## pk - 設置主鍵字段 ~~~ use \api\Mysql; Mysql::pk('id'); ~~~ <br/> ## select - 設置查詢字段 ~~~ use \api\Mysql; // 不傳值則表示查詢所有,即“*” Mysql::select(); Mysql::select('id, name'); Mysql::select('COUNT(`id`) AS count'); // 支持數組 Mysql::select(['id', 'name']); ~~~ <br/> ## from - 設置操作的數據表 ~~~ use \api\Mysql; // 不需要寫表前綴,表前綴應在Mysql.php中配置 Mysql::from('table'); // 第二個參數可以設置數據表別名 Mysql::from('table', 't'); ~~~ <br/> ## where - 條件 ~~~ use \api\Mysql; // id等于1 Mysql::where([ 'id' => 1 ]); // IN查詢 Mysql::where([ 'id IN' => [1,2,3,4,5] ]); // NOT IN查詢 Mysql::where([ 'id NOT IN' => [1,2,3,4,5] ]); // id大于10 Mysql::where([ 'id >' => 10 ]); // id小于10 Mysql::where([ 'id <' => 10 ]); // isnull Mysql::where([ 'id' => null ]); // or Mysql::where([ 'id' => 1, 'OR state' => 1 ]); Mysql::where([ 'id' => 1, 'OR id >' => 10 ]); Mysql::where([ 'id' => 1, 'OR id IN' => [5,6,7] ]); // like Mysql::where([ 'name LIKE' => '%eapi%' ]); // 復雜查詢可將值設置為FALSE,完全以KEY作為查詢內容 Mysql::where([ 'id' => 1, 'OR (id > 5 AND id < 10)' => FALSE ]); ~~~ <br/> ## order - 排序 ~~~ use \api\Mysql; Mysql::order('id DESC'); Mysql::order('id DESC,hit ASC'); // 多個排序字段也可以傳入數據格式 Mysql::order([ 'id' => 'DESC', 'addtime' => 'ASC' ]); ~~~ <br/> ## group - 分組 ~~~ use \api\Mysql; Mysql::group('sex'); ~~~ <br/> ## limit - 條數 ~~~ use \api\Mysql; Mysql::limit(10); // 10到20條 Mysql::limit(10, 10); ~~~ <br/> ## join - 關聯 ~~~ use \api\Mysql; Mysql::join('table AS t', 't.id = x.id', 'LEFT'); ~~~ <br/> ## one - 查詢單條 ~~~ $data = mysql('table', 't')->select() ->join('table_1 t1', 't.id = t1.id', 'LEFT') ->where([ 't.id' => 1 ]) ->one(); ~~~ <br/> ## all - 查詢多條 ~~~ $data = mysql('table', 't')->select() ->join('table_1 t1', 't.id = t1.id', 'LEFT') ->where([ 't.id' => 1 ]) ->order('t.id DESC') ->limit(10) ->all(); ~~~ <br/> ## add - 寫入數據 ~~~ // 返回插入數據的insertId $id = mysql('table')->add([ 'id' => 1, 'name' => 'test' ]); // 批量寫入,返回寫入的條數 $data = [ [ 'id' => 1, 'name' => 'test' ], [ 'id' => 1, 'name' => 'test' ], [ 'id' => 1, 'name' => 'test' ] ]; $num = mysql('table')->add($data, TRUE); ~~~ <br/> ## edit - 更新數據 ~~~ // 返回影響的條數 $num = mysql('table')->where([ 'id' => 1 ])->edit([ 'name' => 'new name' ]); ~~~ <br/> ## delete - 刪除數據 ~~~ // 返回影響的條數 $num = mysql('table')->where([ 'id' => 1 ])->delete(); ~~~ <br/> ## query - 執行SQL語句 ~~~ use \api\Mysql; // SQL查多條 $data = Mysql::query('SELECT * FROM table')->all(); // SQL查單條 $data = Mysql::query('SELECT * FROM table limit 1')->one(); // 執行SQL語句 Mysql::query('INSERT INTO table (id) VALUES (1)'); ~~~ <br/> ## lastSql - 獲取最后執行的SQL語句 ~~~ use \api\Mysql; $sql = Mysql::lastSql(); ~~~ <br/> ## 事務 ~~~ use \api\Mysql; // 開始事務 Mysql::startTrans(); // 執行語句,一定要放到try、catch中 try { TbOne::insert([ 'name' => 'eapi', 'age' => 35 ]); TbOne::insert([ 'name' => 'eapi', 'age' => 36 ]); // 提交事務 Mysql::commit(); } catch(\Exception $exception){ // 如果SQL有異常則回滾事務 Mysql::rollback(); } ~~~
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