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<?php |
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namespace kalanis\kw_mapper\Storage\Database\Dialects; |
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use kalanis\kw_mapper\Interfaces\IQueryBuilder; |
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use kalanis\kw_mapper\Storage\Shared\QueryBuilder; |
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/** |
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* Class Oracle |
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* @package kalanis\kw_mapper\Storage\Database\Dialects |
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* Create queries for Oracle servers |
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* WTF with limits - use Oracle12c database or you must write your own dialect |
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* Also for the similar purposes you cannot limit amount of deleted or updated rows |
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* @link https://www.databasestar.com/limit-the-number-of-rows-in-oracle/ |
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*/ |
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class Oracle extends ADialect |
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{ |
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use TEscapedDialect; |
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public function insert(QueryBuilder $builder) |
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{ |
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return sprintf('INSERT INTO `%s` (%s) VALUES (%s);', |
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$builder->getBaseTable(), |
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$this->makeSimplePropertyList($builder->getProperties()), |
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$this->makePropertyEntries($builder->getProperties()) |
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); |
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} |
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public function select(QueryBuilder $builder) |
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{ |
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return sprintf('SELECT %s FROM `%s` %s %s%s%s%s%s;', |
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$this->makeFullColumns($builder->getColumns()), |
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$builder->getBaseTable(), |
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$this->makeJoin($builder->getJoins()), |
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$this->makeFullConditions($builder->getConditions(), $builder->getRelation()), |
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$this->makeFullGrouping($builder->getGrouping()), |
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$this->makeFullHaving($builder->getHavingCondition(), $builder->getRelation()), |
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$this->makeFullOrdering($builder->getOrdering()), |
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$this->makeLimits($builder->getLimit(), $builder->getOffset()) |
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); |
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} |
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public function update(QueryBuilder $builder) |
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{ |
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return sprintf('UPDATE `%s` SET %s%s;', |
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$builder->getBaseTable(), |
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$this->makeProperty($builder->getProperties()), |
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$this->makeSimpleConditions($builder->getConditions(), $builder->getRelation()) |
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); |
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} |
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public function delete(QueryBuilder $builder) |
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{ |
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return sprintf('DELETE FROM `%s`%s;', |
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$builder->getBaseTable(), |
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$this->makeSimpleConditions($builder->getConditions(), $builder->getRelation()) |
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); |
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} |
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public function describe(QueryBuilder $builder) |
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{ |
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return sprintf('DESCRIBE `%s`;', $builder->getBaseTable() ); |
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} |
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protected function makeLimits(?int $limit, ?int $offset): string |
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{ |
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return is_null($limit) |
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? '' |
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: sprintf(' OFFSET %d ROWS FETCH NEXT %d ROWS ONLY', intval($offset), $limit) |
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; |
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} |
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public function availableJoins(): array |
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{ |
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return [ |
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IQueryBuilder::JOIN_BASIC, |
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IQueryBuilder::JOIN_INNER, |
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IQueryBuilder::JOIN_CROSS, |
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IQueryBuilder::JOIN_LEFT, |
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IQueryBuilder::JOIN_RIGHT, |
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IQueryBuilder::JOIN_FULL, |
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]; |
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} |
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} |
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alex-kalanis /
kw_mapper
