arcgis删除重复图斑

arcgis 通过过滤条件删除重复数据，仅保留一条 (对于 SDE 或个人地理数据库内的要素类有效）
或者直接使用delete identical工具。

[FIELD_NAME] In (
    SELECT
        [FIELD_NAME]
    FROM
        [TABLE_NAME]
    GROUP BY
        [FIELD_NAME]
    HAVING
        Count(*) > 1  
)
and [OID_FIELD_NAME] NOT In (
    SELECT
        MIN([OID_FIELD_NAME])
    FROM
        [TABLE_NAME]
    GROUP BY
        [FIELD_NAME]
    HAVING
        COUNT(*) > 1
)

参考

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