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How to solve warning “fetchAll can be memory inefficient for large data sets” in magento2

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1

I am getting a warning as
"fetch All can be memory inefficient for large data sets",

When I did MEQP2.

Please anyone can help me to resolve this warning.

I am getting a warning in below line

$expr = $this->zendExprFactory->create(['expression' => 'COUNT(*)']);

$productMappingQry = $connection->select()->from($this->resourceConfig->getTable($tableName), [$expr])->where('store=?', $storeId);

$finalData = $connection->fetchAll($Qry);

Thank you in advance

magento2 query

share|improve this question

edited Jun 4 at 11:07

fmsthird

3,3694631

asked Jun 4 at 11:01

Kavya cheeralaKavya cheerala

566

add a comment | 

1

I am getting a warning as
"fetch All can be memory inefficient for large data sets",

When I did MEQP2.

Please anyone can help me to resolve this warning.

I am getting a warning in below line

$expr = $this->zendExprFactory->create(['expression' => 'COUNT(*)']);

$productMappingQry = $connection->select()->from($this->resourceConfig->getTable($tableName), [$expr])->where('store=?', $storeId);

$finalData = $connection->fetchAll($Qry);

Thank you in advance

magento2 query

share|improve this question

edited Jun 4 at 11:07

fmsthird

3,3694631

asked Jun 4 at 11:01

Kavya cheeralaKavya cheerala

566

add a comment | 

I am getting a warning as
"fetch All can be memory inefficient for large data sets",

When I did MEQP2.

Please anyone can help me to resolve this warning.

I am getting a warning in below line

$expr = $this->zendExprFactory->create(['expression' => 'COUNT(*)']);

$productMappingQry = $connection->select()->from($this->resourceConfig->getTable($tableName), [$expr])->where('store=?', $storeId);

$finalData = $connection->fetchAll($Qry);

Thank you in advance

magento2 query

share|improve this question

edited Jun 4 at 11:07

fmsthird

3,3694631

asked Jun 4 at 11:01

Kavya cheeralaKavya cheerala

566

$expr = $this->zendExprFactory->create(['expression' => 'COUNT(*)']);

$productMappingQry = $connection->select()->from($this->resourceConfig->getTable($tableName), [$expr])->where('store=?', $storeId);

$finalData = $connection->fetchAll($Qry);

share|improve this question

edited Jun 4 at 11:07

fmsthird

3,3694631

asked Jun 4 at 11:01

Kavya cheeralaKavya cheerala

566

share|improve this question

edited Jun 4 at 11:07

fmsthird

3,3694631

asked Jun 4 at 11:01

Kavya cheeralaKavya cheerala

566

edited Jun 4 at 11:07

fmsthird

3,3694631

edited Jun 4 at 11:07

fmsthird

3,3694631

asked Jun 4 at 11:01

Kavya cheeralaKavya cheerala

566

asked Jun 4 at 11:01

Kavya cheeralaKavya cheerala

566

1 Answer
1

active

oldest

votes

1

Try to use fetchOne

$expr = $this->zendExprFactory->create(['expression' => 'COUNT(*)']);

$productMappingQry = $connection->select()->from($this->resourceConfig->getTable($tableName), [$expr])->where('store=?', $storeId);

$finalData = $connection->fetchOne($Qry);

share|improve this answer

answered Jun 4 at 11:10

fmsthirdfmsthird

3,3694631

add a comment | 

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1

Try to use fetchOne

$expr = $this->zendExprFactory->create(['expression' => 'COUNT(*)']);

$productMappingQry = $connection->select()->from($this->resourceConfig->getTable($tableName), [$expr])->where('store=?', $storeId);

$finalData = $connection->fetchOne($Qry);

share|improve this answer

answered Jun 4 at 11:10

fmsthirdfmsthird

3,3694631

add a comment | 

1

Try to use fetchOne

$expr = $this->zendExprFactory->create(['expression' => 'COUNT(*)']);

$productMappingQry = $connection->select()->from($this->resourceConfig->getTable($tableName), [$expr])->where('store=?', $storeId);

$finalData = $connection->fetchOne($Qry);

share|improve this answer

answered Jun 4 at 11:10

fmsthirdfmsthird

3,3694631

add a comment | 

Try to use fetchOne

$expr = $this->zendExprFactory->create(['expression' => 'COUNT(*)']);

$productMappingQry = $connection->select()->from($this->resourceConfig->getTable($tableName), [$expr])->where('store=?', $storeId);

$finalData = $connection->fetchOne($Qry);

share|improve this answer

answered Jun 4 at 11:10

fmsthirdfmsthird

3,3694631

$expr = $this->zendExprFactory->create(['expression' => 'COUNT(*)']);

$productMappingQry = $connection->select()->from($this->resourceConfig->getTable($tableName), [$expr])->where('store=?', $storeId);

$finalData = $connection->fetchOne($Qry);

share|improve this answer

answered Jun 4 at 11:10

fmsthirdfmsthird

3,3694631

answered Jun 4 at 11:10

fmsthirdfmsthird

3,3694631

answered Jun 4 at 11:10

fmsthirdfmsthird

3,3694631