30 lines
736 B
SQL
30 lines
736 B
SQL
DROP PROCEDURE IF EXISTS mocha_get_attribute_value;
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CREATE PROCEDURE mocha_get_attribute_value
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(
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IN p_source_inst_id INT,
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IN p_attribute_inst_id INT,
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IN p_effective_date DATETIME
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)
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BEGIN
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DECLARE p_tenant_id INT;
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DECLARE z_effective_date DATETIME;
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SET p_tenant_id = mocha_get_current_tenant();
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IF p_effective_date IS NULL THEN
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SET z_effective_date = NOW();
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ELSE
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SET z_effective_date = p_effective_date;
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END IF;
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SELECT att_value FROM mocha_attributes
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WHERE tenant_id = p_tenant_id
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AND src_inst_id = p_source_inst_id
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AND att_inst_id = p_attribute_inst_id
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AND att_effective_date <= z_effective_date
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ORDER BY att_effective_date DESC, id DESC
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LIMIT 1;
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END;
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