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Lazy ICT Dictionary
An ICT Dictionary for HKDSE Student
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SQL
December 26, 2024
SQL Basic Function
Definition:
To help doing difficult duties.
Command Example:
Aggregation Function:
AVG()
COUNT()
MAX()
MIN()
SUM()
Date Function:
DATE()
DAY()
MONTH()
YEAR()
String Function:
LEN/LENGTH()
MID()
SPACE()
TRIM()
LOWER()
UPPER()
Other Function:
ABS()
CHAR/CHR()
INT()
‘Eazy and basic.’By secondary 6 student
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