SAP HANA SQLScript · Date & Time Processing

An empty DATE was inserted. What does this return? ``` SELECT TO_VARCHAR(date_val) AS s, DAYS_BETWEEN(date_val, '0001-01-10') AS d FROM date_values; ```

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More in Date & Time Processing

What does each return with TO_VARCHAR? ``` TO_VARCHAR( TO_TIME('13:07:38'),'HH12') TO_VARCHAR( TO_TIME('13:07:38'),'SSSSS') ```

This insert fails. Why, and how do you fix it? ``` INSERT INTO dates VALUES('01=02=2017'); ```

What does each expression return for the date 2018-12-27? ``` TO_VARCHAR(d,'RM') TO_VARCHAR(d,'MON') TO_VARCHAR(d,'DDD') ```

These are ABAP DATS strings, VARCHAR(8) in YYYYMMDD form. What are the two deltas? ``` '20180618' - '20180601' '20180101' - '20180601' ```

What does DAYS_BETWEEN('2017-12-01', '2017-12-08') return, and how is the sign decided?

You want the day-of-month as an integer. EXTRACT(DAY FROM d) works, but DAY(d) reports 'function not found'. What is the standalone function called?

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