How to get the total count of records after union of CTE tables in SQL? -

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i applying cte on 3 4 tables , combining results using union.i not storing combined result anywhere. facing challenge total number records resulted after union of these 4 tables.

also have select limited number of rows based on flag set if export excel set select 25000 records else select 10000 records.

please me on this.

code sample looks below:

with item_characteristics_cte (     select         sequence, item_id             item_characteristics_log ), item_required_quantity_log_cte (     select         sequence, item_id             item_required_quantity_log ) select      c1.item_id       item_characteristics_cte c1 inner join      item_characteristics_cte c2 on c1.sequence = c2.sequence   union  select      c1.item_id item_id      item_required_quantity_log_cte c1  inner join             item_required_quantity_log_cte c2 on c1.sequence = c2.sequence       c2.rn = c1.rn

i not sure flag mean in above question. count, use 1 additional cte this:

;with item_characteristics_cte (     select sequence         ,item_id     item_characteristics_log     )     ,item_required_quantity_log_cte (     seelect sequence     ,item_id item_required_quantity_log     )     ,item_id_count (     select c1.item_id     item_characteristics_cte c1     inner join item_characteristics_cte c2 on c1.sequence = c2.sequence      union      select c1.item_id item_id     item_required_quantity_log_cte c1     inner join item_required_quantity_log_cte c2 on c1.sequence = c2.sequence     c2.rn = c1.rn     ) select item_id     ,count(item_id) item_id_count

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