19 lines
525 B
SQL
19 lines
525 B
SQL
-- Add address column to customers table
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SET @dbname = DATABASE();
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SET @tablename = "customers";
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SET @columnname = "address";
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SET @preparedStatement = (SELECT IF(
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(
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SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
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WHERE
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(table_name = @tablename)
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AND (table_schema = @dbname)
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AND (column_name = @columnname)
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) > 0,
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"SELECT 1",
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"ALTER TABLE customers ADD COLUMN address TEXT;"
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));
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PREPARE alterIfNotExists FROM @preparedStatement;
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EXECUTE alterIfNotExists;
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DEALLOCATE PREPARE alterIfNotExists;
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