Kexi/Plugins/Queries/SQL Constants: Difference between revisions
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Grammar - two versions: | Grammar - two versions: | ||
* ISO format (KEXI default, recommended) | * ISO format (KEXI default, recommended) | ||
# | #Syyyy-mm-dd# | ||
* US format (for compatibility, based on MSA default [https://msdn.microsoft.com/en-us/library/bb221200(v=office.12).aspx]) | * US format (for compatibility, based on MSA default [https://msdn.microsoft.com/en-us/library/bb221200(v=office.12).aspx]) | ||
#mm/dd/ | #mm/dd/Syyyy# | ||
*S means "-" or "+" or "", see below | |||
Notes: | Notes: | ||
*Both formats are not dependent on regional settings on the OS, they are always interpreted the same way | *Both formats are not dependent on regional settings on the OS, they are always interpreted the same way | ||
*One or two digits are required for month and day, e.g. #2018-4-15# and #2018-04-1# are both valid dates | *One or two digits are required for month and day, e.g. #2018-4-15# and #2018-04-1# are both valid dates | ||
*Four digits are required for year, e.g. #18-4-15# is invalid date | *Years encoding is a base subset of ISO 8601: | ||
**Four digits are required for year, e.g. #18-4-15# is invalid date | |||
**0001 <= year <= 9999 are years of Anno Domini | |||
**by convention 1 BC is labelled +0000 (unlike in QDate where 0 is invalid year) | |||
**by convention 2 BC is labelled -0001, 3 BC is labelled -0002, etc. (unlike in QDate where 1 means 1 BC) | |||
**year > 9999 is not supported | |||
*MSA's format such as #24 Dec 2014# is not supported. | *MSA's format such as #24 Dec 2014# is not supported. | ||
*Detailed grammar of VBA for reference: https://msdn.microsoft.com/en-us/library/dn528865.aspx | *Detailed grammar of VBA for reference: https://msdn.microsoft.com/en-us/library/dn528865.aspx | ||
Revision as of 16:26, 17 September 2018
Date constants
(since 3.1.1, Bug #393094)
Grammar - two versions:
- ISO format (KEXI default, recommended)
#Syyyy-mm-dd#
- US format (for compatibility, based on MSA default [1])
#mm/dd/Syyyy#
- S means "-" or "+" or "", see below
Notes:
- Both formats are not dependent on regional settings on the OS, they are always interpreted the same way
- One or two digits are required for month and day, e.g. #2018-4-15# and #2018-04-1# are both valid dates
- Years encoding is a base subset of ISO 8601:
- Four digits are required for year, e.g. #18-4-15# is invalid date
- 0001 <= year <= 9999 are years of Anno Domini
- by convention 1 BC is labelled +0000 (unlike in QDate where 0 is invalid year)
- by convention 2 BC is labelled -0001, 3 BC is labelled -0002, etc. (unlike in QDate where 1 means 1 BC)
- year > 9999 is not supported
- MSA's format such as #24 Dec 2014# is not supported.
- Detailed grammar of VBA for reference: https://msdn.microsoft.com/en-us/library/dn528865.aspx
Time constants
(since 3.1.1, Bug #393094)
Grammar - two versions:
- Full, 24h mode
#hh:nn:ss#
- Full, 12h mode
#hh:nn:ss AM# #hh:nn:ss PM#
- Short, 24h mode
#hh:nn#
- Short, 12h mode
#hh:nn AM# #hh:nn PM#
Notes:
- One or two digits are required; e.g. both #05:59:01# and #5:59:1# are time literals having the same value
- AM/PM suffixes are case insensitive
Date/Time constants
(since 3.1.1, Bug #393094)
Grammar:
#{date}{whitespace}{time}#
Where {date} is defined as for Date literals and {time} is defined as for Time literals.
Notes:
- All notes regarding date and time format also apply to data and time parts of the value