You are a helpful assistant generating synthetic data that captures *System 1* and *System 2* thinking, *creativity*, and *metacognitive reflection*. Follow these steps in sequence, using tags [sys1] and [end sys1] for *System 1* sections and [sys2] and [end sys2] for *System 2* sections.

1. *Identify System 1 and System 2 Thinking Requirements:*
   - Carefully read the text.
   - Identify parts of the text that require quick, straightforward responses (*System 1*). Mark these sections with [sys1] and [end sys1].
   - Identify parts that require in-depth, reflective thinking (*System 2*), marked with [sys2] and [end sys2].

2. *Apply Step-by-Step Problem Solving with Creativity and Metacognitive Reflection for System 2 Sections:*

   *2.1 Understand the Problem:*
   - Objective: Fully comprehend the issue, constraints, and relevant context.
   - Reflection: "What do I understand about this issue? What might I be overlooking?"
   - Creative Perspective: Seek hidden patterns or possibilities that could reveal deeper insights or innovative connections.

   *2.2 Analyze the Information:*
   - Objective: Break down the problem logically.
   - Reflection: "Am I considering all factors? Are there any assumptions that need challenging?"
   - Creative Perspective: Explore unique patterns or overlooked relationships in the data that could add depth to the analysis.

   *2.3 Generate Hypotheses:*
   - Objective: Propose at least 10 hypotheses, each with a Confidence Score (0.0 to 1.0) and Creative Score (0.0 to 1.0), reflecting originality, surprise, and utility.
   - Reflection: "Have I explored all possible explanations or approaches, both conventional and unconventional?"
   - Creative Perspective: Consider novel angles that might provide unexpected insights.

   *2.4 Anticipate Future Steps and Obstacles:*
   - Objective: Make predictions, accounting for potential outcomes and obstacles.
   - Reflection: "What challenges might I face? Is my plan flexible for different scenarios?"
   - Creative Perspective: Visualize unforeseen outcomes and adapt plans to make use of them effectively.

   *2.5 Evaluate Hypotheses:*
   - Objective: Assess hypotheses based on feasibility, risk, and potential impact.
   - Evaluation: Refine Confidence and Creative Scores as needed.
   - Reflection: "Am I unbiased in my assessment? Which options fit best with the overall objectives?"
   - Creative Perspective: Identify hidden opportunities or overlooked details in each hypothesis.

   *2.6 Select the Best Hypothesis:*
   - Objective: Choose the most promising, strategic hypothesis.
   - Reflection: "Why does this hypothesis stand out? How does it uniquely address the issue?"
   - Creative Perspective: Consider any underutilized potential in the selected approach.

   *2.7 Implement the Hypothesis:*
   - Objective: Outline actionable steps for testing the hypothesis.
   - Reflection: "Is this plan practical? What resources or preparation are required?"
   - Creative Perspective: Refine steps to maximize effectiveness and yield unexpected benefits.

   *2.8 Monitor and Review Progress:*
   - Objective: Review progress, noting areas for improvement.
   - Reflection: "What’s working well? What could be improved?"
   - Creative Perspective: Look for emerging patterns that could refine future approaches.

   *2.9 Reflect and Capture Insights:*
   - Objective: Summarize lessons learned and insights gained for future reference.
   - Reflection: "What new understanding has emerged from this process?"
   - Creative Perspective: Identify innovative insights or patterns that could be applied to similar challenges.

3. *Generate Text Output with Interleaved System 1 and System 2 Responses:*
   - Use the tags [sys1] and [sys2] throughout.
   - Aim for a lengthier, detailed response. Combine both direct, straightforward *System 1* insights and reflective, deeply analytical *System 2* segments to capture a blend of quick observations and thoughtful analysis.

---

### *Example Input Text:*

You are tasked with analyzing a sudden shift in customer preferences in a tech market. There has been a noticeable decline in demand for physical devices, with customers increasingly interested in digital-only options. The challenge is to understand this shift, generate hypotheses for why it might be occurring, and explore potential strategies for adapting to this new trend.

---

### *Processed Output with System 1 and System 2 Thinking:*

The tech market is experiencing a shift in customer demand, moving away from physical devices toward digital-only options.

[sys1]
Customer demand has shifted from physical devices to digital-only options.
We need to understand why this change is happening and find strategies to address it.
Key factors may include cost, convenience, and technological trends.
[end sys1]

[sys2]
**2.1 Understand the Problem:**
The goal is to understand the underlying reasons for the shift in demand from physical devices to digital-only options, then develop a strategy to adapt.

*Reflection:* 
"I understand that preferences are changing, but what might be driving this? Is it primarily cost, or are there other factors such as convenience or sustainability?"

*Creative Perspective:* 
"Could there be a larger trend in digital minimalism or a preference for eco-friendly solutions that we’re missing? What unseen motivations might explain this shift?"

**2.2 Analyze the Information:**
There are multiple possible factors driving this shift, from economic influences to cultural shifts. It’s essential to isolate each factor and understand its impact.

*Reflection:* 
"Am I fully considering the various economic and social influences? Could there be a technological factor, like better internet speeds, that makes digital-only products more accessible?"

*Creative Perspective:* 
"Are there patterns or trends in other markets that could shed light on this shift? Could this be part of a larger trend toward virtual experiences?"

**2.3 Generate Hypotheses:**
1. Customers prefer digital options due to lower costs. (Confidence: 0.8, Creative: 0.4)
2. There’s a growing trend toward minimalism and reduced physical clutter. (Confidence: 0.7, Creative: 0.7)
3. Digital products offer greater flexibility and ease of use. (Confidence: 0.6, Creative: 0.6)
4. Environmental concerns are pushing consumers away from physical goods. (Confidence: 0.6, Creative: 0.8)
5. Advances in tech make digital-only options more functional. (Confidence: 0.8, Creative: 0.5)
6. Pandemic-era remote work increased demand for digital solutions. (Confidence: 0.7, Creative: 0.6)
7. Media coverage of the environmental impact of physical devices affects preferences. (Confidence: 0.5, Creative: 0.7)
8. There’s an increase in global digital literacy, expanding market access. (Confidence: 0.6, Creative: 0.6)
9. Customers view digital as more convenient and scalable for future needs. (Confidence: 0.7, Creative: 0.5)
10. Younger consumers prefer the aesthetics and convenience of digital products. (Confidence: 0.6, Creative: 0.6)

*Reflection:* 
"Have I considered all possible influences? Are there any surprising factors that could explain this shift?"

*Creative Perspective:* 
"Could specific social trends, like the rise of influencer culture or digital-first lifestyles, be influencing customer choices?"

**2.4 Anticipate Future Steps and Obstacles:**
*Objective:* Anticipate possible challenges, such as resistance from segments still preferring physical products.

*Reflection:* 
"What market obstacles might we face if we shift our focus to digital-only? Are there sub-segments that still prioritize physical products?"

*Creative Perspective:* 
"Could expanding digital options help us reach a more global audience? Are there emerging trends that we could leverage in our strategy?"

[end sys2]

[sys1]
To address this shift, consider a strategy that incorporates both digital-only offerings and educational campaigns about the benefits of digital solutions.
Use insights from customer feedback and current trends to guide product development.
Focus on flexibility and adaptation to cater to different customer segments.
[end sys1]


Q:

Oracle - Criteria based query to fetch duplicate field

Could someone help me in querying this complex scenario?
I have the following 3 tables.
Table: LOCATION
ID      LOCATION_ID     START_DT    END_DT
21234   123             19-JUL-17   (null)
12345   345             19-JUL-17   (null)
12345   456             19-JUL-17   19-DEC-17
12345   567             19-JUL-16   (null)
12345   678             19-JUL-16   (null)
12345   789             19-JUL-17   (null)
12345   890             19-JUL-17   (null)
23456   901             07-JAN-18   (null)
23456   902             19-JAN-17   (null)

Table: CONTACTGROUP
LOCATION_ID     METHOD_ID
123             9999
345             8888
456             7777
567             6666
678             5555
789             4444
890             3333
901             2222
902             1111

Table: CONTACTMETHOD
METHOD_ID   REF_NUM     METHOD_TYPE
9999        24856584    CELL PHONE
8888        64896572    HOME PHONE
7777        65948725    HOME PHONE
6666        36564852    HOME PHONE
5555        <PRESIDIO_ANONYMIZED_EMAIL_ADDRESS> PRIMARY EMAIL
4444        <PRESIDIO_ANONYMIZED_EMAIL_ADDRESS> PRIMARY EMAIL
3333        45789658    ALTERNATE PHONE
2222        86594758    HOME PHONE
1111        59857468    HOME PHONE

EXPECTED RESULT:
ID      LOCATION_ID     REF_NUM         METHOD_TYPE     START_DT    END_DT
12345   567             36564852        HOME PHONE      19-JUL-16   (null)
12345   678             <PRESIDIO_ANONYMIZED_EMAIL_ADDRESS>     PRIMARY EMAIL   19-JUL-16   (null)
23456   902             59857468        HOME PHONE      19-JAN-17   (null)

Criteria:
Returning fields whose

END_DT is null(i.e ID which is active).
METHOD_TYPE field is duplicated(i.e REF_NUM need not be the same, but
METHOD_TYPE is duplicated).
The oldest among the multiple values is selected(i.e among the
multiple duplicate fields, the resultant LOCATION_ID must be
earliest among those, by comparing START_DT).

I've been trying this to some extent.
SELECT L.id, 
       L.location_id, 
       CM.ref_num, 
       CM.method_type, 
       L.start_dt, 
       L.end_dt 
FROM   location L 
       JOIN contactgroup CG 
         ON CG.location_id = L.location_id 
       JOIN contactmethod CM 
         ON CM.method_id = CG.method_id 
WHERE  L.end_dt IS NULL 
GROUP  BY L.id, 
          L.location_id, 
          CM.ref_num, 
          CM.method_type, 
          L.start_dt, 
          L.end_dt 
HAVING Count(*) > 1 

A:

The desired result can be achieved as follows -
SELECT 
    ID,LOCATION_ID,REF_NUM,METHOD_TYPE,START_DT,END_DT
FROM 
(
    SELECT 
        A.* ,
        DENSE_RANK() OVER (PARTITION BY ID, METHOD_TYPE ORDER BY START_DT DESC) AS RNK
    FROM 
    (
        SELECT 
            L.ID,L.LOCATION_ID,CM.REF_NUM,CM.METHOD_TYPE,L.START_DT,L.END_DT
        FROM 
            LOCATION L, CONTACTMETHOD CM, CONTACTGROUP CG
        WHERE 
            L.LOCATION_ID = CG.LOCATION_ID
            AND CG.METHOD_ID = CM.METHOD_ID
            AND L.END_DT IS NULL
    ) A
) 
WHERE RNK = 2
;

Result:-
        ID LOCATION_ID REF_NUM              METHOD_TYPE          START_DT  END_DT
---------- ----------- -------------------- -------------------- --------- ---------
     12345         567 36564852             HOMEPHONE            19-JUL-16
     12345         678 <PRESIDIO_ANONYMIZED_EMAIL_ADDRESS>          PRIMARYEMAIL         19-JUL-16
     23456         902 59857468             HOMEPHONE            19-JAN-17