[SalesForce] IN Clause in Dynamic Query

list<string> setknowledgeArticleIds = new list<string>();
setknowledgeArticleIds.addAll(knowledgeArticleIdToHS_Sync.keySet());

knowledgeQuery = 'SELECT Id ,KnowledgeArticleId ,  ' + title + ',' + answer + ' FROM ' + articleType;
        knowledgeQuery += ' WHERE PublishStatus = \'Online\'  AND language = \'en_US\' AND KnowledgeArticleId IN :setknowledgeArticleIds ';

throwing an error : System.QueryException: Variable does not exist:
setknowledgeArticleIds

In debug log i can see the query as : 

SELECT Id ,KnowledgeArticleId ,  title,summary FROM hsinhouse__test_article_type_2__kav WHERE  PublishStatus = 'Online'  AND language = 'en_US' AND KnowledgeArticleId IN :setknowledgeArticleIds

Its a strange error . Please let me know if you find solution

Thanks

Best Answer

Is it a typo* that you typed aphostphe after the setknowledgeArticleIds variable in the last line, And Please let us know where are you trying to run this code.

If setknowledgeArticleIds is a list of ID's you can declare it as SET<ID> setknowledgeArticleIds instead of a List<String> setknowledgeArticleIds.

list<string> setknowledgeArticleIds = new list<string>();
setknowledgeArticleIds.addAll(knowledgeArticleIdToHS_Sync.keySet());

knowledgeQuery = 'SELECT Id ,KnowledgeArticleId ,  ' + title + ',' + answer + ' FROM ' + articleType;
knowledgeQuery += ' WHERE PublishStatus = \'Online\'  AND language = \'en_US\' AND KnowledgeArticleId IN :' + setknowledgeArticleIds;
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