public static String getCheckColumn(final String tableName, final String columnName) {
        final StringBuilder sqlBuilder = new StringBuilder().append("SELECT count(1) ")
                .append(" from  USER_TAB_COLUMNS where TABLE_NAME= '")
                .append(tableName)
                .append("' and COLUMN_NAME = '")
                .append(columnName)
                .append("' ");
        LOGGER.info("check table sql: {}", sqlBuilder);
        return sqlBuilder.toString();
    }
Build SQL to check whether the column exists.

@param tableName Oracle table name
@param columnName Oracle column name
@return the check column SQL string
inlong-manager/manager-service/src/main/java/org/apache/inlong/manager/service/resource/sink/oracle/OracleSqlBuilder.java