public function batchInsert($table, $columns, $rows, &$params = [])
    {
        if (empty($rows)) {
            return '';
        }

        // SQLite supports batch insert natively since 3.7.11
        // http://www.sqlite.org/releaselog/3_7_11.html
        $this->db->open(); // ensure pdo is not null
        if (version_compare($this->db->getServerVersion(), '3.7.11', '>=')) {
            return parent::batchInsert($table, $columns, $rows, $params);
        }

        $schema = $this->db->getSchema();
        if (($tableSchema = $schema->getTableSchema($table)) !== null) {
            $columnSchemas = $tableSchema->columns;
        } else {
            $columnSchemas = [];
        }

        $values = [];
        foreach ($rows as $row) {
            $vs = [];
            foreach ($row as $i => $value) {
                if (isset($columnSchemas[$columns[$i]])) {
                    $value = $columnSchemas[$columns[$i]]->dbTypecast($value);
                }
                if (is_string($value)) {
                    $value = $schema->quoteValue($value);
                } elseif (is_float($value)) {
                    // ensure type cast always has . as decimal separator in all locales
                    $value = StringHelper::floatToString($value);
                } elseif ($value === false) {
                    $value = 0;
                } elseif ($value === null) {
                    $value = 'NULL';
                } elseif ($value instanceof ExpressionInterface) {
                    $value = $this->buildExpression($value, $params);
                }
                $vs[] = $value;
            }
            $values[] = implode(', ', $vs);
        }
        if (empty($values)) {
            return '';
        }

        foreach ($columns as $i => $name) {
            $columns[$i] = $schema->quoteColumnName($name);
        }

        return 'INSERT INTO ' . $schema->quoteTableName($table)
        . ' (' . implode(', ', $columns) . ') SELECT ' . implode(' UNION SELECT ', $values);
    }
public function batchInsert($table, $columns, $rows, &$params = [])
    {
        if (empty($rows)) {
            return '';
        }

        // SQLite supports batch insert natively since 3.7.11
        // http://www.sqlite.org/releaselog/3_7_11.html
        $this->db->open(); // ensure pdo is not null
        if (version_compare($this->db->getServerVersion(), '3.7.11', '>=')) {
            return parent::batchInsert($table, $columns, $rows, $params);
        }

        $schema = $this->db->getSchema();
        if (($tableSchema = $schema->getTableSchema($table)) !== null) {
            $columnSchemas = $tableSchema->columns;
        } else {
            $columnSchemas = [];
        }

        $values = [];
        foreach ($rows as $row) {
            $vs = [];
            foreach ($row as $i => $value) {
                if (isset($columnSchemas[$columns[$i]])) {
                    $value = $columnSchemas[$columns[$i]]->dbTypecast($value);
                }
                if (is_string($value)) {
                    $value = $schema->quoteValue($value);
                } elseif (is_float($value)) {
                    // ensure type cast always has . as decimal separator in all locales
                    $value = StringHelper::floatToString($value);
                } elseif ($value === false) {
                    $value = 0;
                } elseif ($value === null) {
                    $value = 'NULL';
                } elseif ($value instanceof ExpressionInterface) {
                    $value = $this->buildExpression($value, $params);
                }
                $vs[] = $value;
            }
            $values[] = implode(', ', $vs);
        }
        if (empty($values)) {
            return '';
        }

        foreach ($columns as $i => $name) {
            $columns[$i] = $schema->quoteColumnName($name);
        }

        return 'INSERT INTO ' . $schema->quoteTableName($table)
        . ' (' . implode(', ', $columns) . ') SELECT ' . implode(' UNION SELECT ', $values);
    }
public function batchInsert ( $ table , $ columns , $ rows , & $ params = [ ] ) { if ( empty ( $ rows ) ) { return '' ; } // SQLite supports batch insert natively since 3.7.11 // http://www.sqlite.org/releaselog/3_7_11.html $ this -> db -> open ( ) ; // ensure pdo is not null if ( version_compare ( $ this -> db -> getServerVersion ( ) , '3.7.11' , '>=' ) ) { return parent :: batchInsert ( $ table , $ columns , $ rows , $ params ) ; } $ schema = $ this -> db -> getSchema ( ) ; if ( ( $ tableSchema = $ schema -> getTableSchema ( $ table ) ) !== null ) { $ columnSchemas = $ tableSchema -> columns ; } else { $ columnSchemas = [ ] ; } $ values = [ ] ; foreach ( $ rows as $ row ) { $ vs = [ ] ; foreach ( $ row as $ i => $ value ) { if ( isset ( $ columnSchemas [ $ columns [ $ i ] ] ) ) { $ value = $ columnSchemas [ $ columns [ $ i ] ] -> dbTypecast ( $ value ) ; } if ( is_string ( $ value ) ) { $ value = $ schema -> quoteValue ( $ value ) ; } elseif ( is_float ( $ value ) ) { // ensure type cast always has . as decimal separator in all locales $ value = StringHelper :: floatToString ( $ value ) ; } elseif ( $ value === false ) { $ value = 0 ; } elseif ( $ value === null ) { $ value = 'NULL' ; } elseif ( $ value instanceof ExpressionInterface ) { $ value = $ this -> buildExpression ( $ value , $ params ) ; } $ vs [ ] = $ value ; } $ values [ ] = implode ( ', ' , $ vs ) ; } if ( empty ( $ values ) ) { return '' ; } foreach ( $ columns as $ i => $ name ) { $ columns [ $ i ] = $ schema -> quoteColumnName ( $ name ) ; } return 'INSERT INTO ' . $ schema -> quoteTableName ( $ table ) . ' (' . implode ( ', ' , $ columns ) . ') SELECT ' . implode ( ' UNION SELECT ' , $ values ) ; }
Generates a batch INSERT SQL statement.

For example,

```php
$connection->createCommand()->batchInsert('user', ['name', 'age'], [
['Tom', 30],
['Jane', 20],
['Linda', 25],
])->execute();
```

Note that the values in each row must match the corresponding column names.

@param string $table the table that new rows will be inserted into.
@param array $columns the column names
@param array|\Generator $rows the rows to be batch inserted into the table
@return string the batch INSERT SQL statement
Generates a batch INSERT SQL statement .