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TO_DATE - Convert String to Datetime - Oracle to MySQL Migration

In Oracle, TO_DATE function converts a string value to DATE data type value using the specified format. In MySQL, you can use STR_TO_DATE function.

Note that the TO_DATE and STR_TO_DATE format strings are different.

Oracle:

  -- Specify a datetime string literal and its exact format
  SELECT TO_DATE('2013-02-11', 'YYYY-MM-DD') FROM dual;

MySQL:

  -- Specify a datetime string literal and its exact format
  SELECT STR_TO_DATE('2013-02-11', '%Y-%m-%d');

TO_DATE and STR_TO_DATE Format Specifiers

When you convert Oracle TO_DATE function to STR_TO_DATE function in MySQL, you have to map the format specifiers:

Oracle TO_DATE MySQL STR_TO_DATE
YYYY 4-digit year %Y
YY 2-digit year %y
RRRR 2 or 4-digit year, 20th century for 00-49 %Y
RR 2-digit year, 20th century for 00-49 %y
MON Abbreviated month (Jan - Dec) %b
MONTH Month name (January - December) %M
MM Month (1 - 12) %m
DY Abbreviated day (Sun - Sat) %a
DD Day (1 - 31) %d
HH24 Hour (0 - 23) %H
HH or HH12 Hour (1 - 12) %h
MI Minutes (0 - 59) %i
SS Seconds (0 - 59) %s

Conversion Examples

Typical conversion examples:

Oracle MySQL
TO_DATE('2013-02-11', 'YYYY-MM-DD') STR_TO_DATE('2013-02-11', '%Y-%m-%d)
TO_DATE('11/02/13', 'DD/MM/RR') STR_TO_DATE('11/02/13','%d/%m/%y')

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