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ZelWiki.Repository/Scripts/UpsertEmojiCategories.sql

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+DELETE FROM EmojiCategory WHERE Id IN
+(
+	SELECT
+		EC.Id
+	FROM
+		EmojiCategory as EC
+	LEFT OUTER JOIN TempEmojiCategories as TC
+		ON TC.Value = EC.Category
+	WHERE
+		EC.EmojiId = 1
+		AND TC.Value IS NULL
+);
+
+--Insert previously non-existing categories.
+INSERT INTO EmojiCategory
+(
+	EmojiId,
+	Category
+)
+SELECT
+	@EmojiId,
+	TC.Value
+FROM
+	TempEmojiCategories as TC
+LEFT OUTER JOIN EmojiCategory as EC
+	ON EC.Category = TC.Value
+	AND EC.EmojiId = @EmojiId
+WHERE
+	EC.Id IS NULL;