The following lines contain the word 'select', 'insert', 'update' or 'delete':
SELECT period_num
,period_year
,quarter_num
INTO l_current_start_num
,l_current_start_year
,l_current_start_quarter_num
FROM gl_periods
WHERE start_date = p_start_date
AND period_type = p_period_type
AND rownum < 2;
SELECT period_num
,period_year
,quarter_num
INTO l_current_END_num
,l_current_END_year
,l_current_END_quarter_num
FROM gl_periods
WHERE END_date = p_END_date
AND period_type = p_period_type
AND rownum < 2;
SELECT start_date
INTO p_prev_start_date
FROM gl_periods
WHERE period_num = l_prev_start_num
AND period_year = l_prev_start_year
AND period_type = p_period_type
AND rownum < 2;
SELECT END_date
INTO p_prev_END_date
FROM gl_periods
WHERE period_num = l_prev_END_num
AND period_year = l_prev_END_year
AND period_type = p_period_type
AND rownum < 2;