Method columnAs

APIJSONORM/src/main/java/apijson/SQL.java:252–254

有别名的字段 @param column @return #count(String) + #AS;

(String column)

	 * @return {@link #count(String)} + {@link #AS};
	 */
	public static String columnAs(String column) {
		return count(column) + AS;
	}

	/**函数
	 * @param column if (StringUtil.isEmpty(column, true) || column.contains(",")) -> column = null;