Cretate new table to existing module in Magento2

Question

I have created the module and installed.

I forgot to include Setup/InstallSchema.php to create the table first time

Once the module is created can we create new table using InstallSchema.php?

I tried that is not created.

After that I used Upgradeschema.php to create the table.

By changing the version in etc/module.xml.

Now i am getting base table not found error.

I am using below code to create table in Setup/UpgradeSchema.php

  use Magento\Framework\Setup\UpgradeSchemaInterface;
  use Magento\Framework\Setup\SchemaSetupInterface;
  use Magento\Framework\Setup\ModuleContextInterface;
  use Magento\Framework\DB\Ddl\Table;

  class UpgradeSchema implements  UpgradeSchemaInterface
 {
  public function upgrade(SchemaSetupInterface $setup,  ModuleContextInterface $context)
{
   $setup->startSetup();

    if (version_compare($context->getVersion(), '2.0.1', '<')) {
      $setup->getConnection()->addColumn(
        $setup->getTable("product_temp_cart"),
        'id',
        [
          "type" => Table::TYPE_INTEGER,
          "identity" => true,
          "nullable" => false,
          "primary" => true
        ]
      );
      $setup->getConnection()->addColumn(
        $setup->getTable("product_temp_cart"),
        'reference_sku',
        [
          "type" => Table::TYPE_TEXT,
          "nullable" => true
        ]
      );
      $setup->getConnection()->addColumn(
        $setup->getTable("product_temp_cart"),
        'product_sku',
        [
          "type" => Table::TYPE_TEXT,
          "nullable" => true
        ]
      );
      $setup->getConnection()->addColumn(
      $setup->getTable("product_temp_cart"),
        'customer_id',
        [
          "type" => Table::TYPE_INTEGER,
          "nullable" => false
        ]
      );
        $setup->getConnection()->addColumn(
        $setup->getTable("product_temp_cart"),
        'quote_id',
        [
          "type" => Table::TYPE_INTEGER,
          "nullable" => true
        ]
      );
       $setup->getConnection()->addColumn(
        $setup->getTable("product_temp_cart"),
        'quote_id',
        [
          "type" => Table::TYPE_TIMESTAMP,
          "nullable" => true
        ]
      );

    }
    $setup->endSetup();
    }
 }

Can we create the table to the existing module. If yes Please anyone share me the code .

Thanks in advance

Answer 1

You can create a table by InstallSchema.php

If you forgot to create a table first time, You have to delete module entry from setup_module table. You can find your module name like Namespace_Modulename in this table. just delete your module entry and run below command

php bin/magento setup:upgrade

It will create your table.

Answer 2

UpgradeScheme works only when you need to update your existing table. so what you need to do is just find Setup_module tabel in your Database. Find the Entry of your module. Delete the entry of your module. Create Setup/InstallSchema.php write the complete script and run

php bin/magento setup:upgrade

thats all.