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並前往https://coderedirect.com/questions/362655/postgresql-count-data-as-zero-if-it-is-null-when-where-clause-is-used

[Solved] Sql PostgreSQL count data as zero if it is null (when ...

Now I have this query:SELECT opp.name as name,count(log.stage_id) as stage_countFROM crm_lead as opp LEFT OUTER JOIN crm_lead_stage_log as log ON (opp.id ...

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