Related articles:
SQL
Insert (SQL)
Select (SQL)
Join (SQL)
Update (SQL)
Data Manipulation Language
Data Definition Language
Relational model
Microsoft SQL Server
Omega
Key terms:
null
sql
rows
dml
source lang
codd
markers
evaluate
relational
pn
predicate
constraint
rdbms
coalesce
null values
null then
empty string
keywords
postgresql
truth values
null result
placeholder
inconsistency
sql standard
aggregate function
relational model
check constraint
left outer join
null markers
ternary logic
sql defines
database management
unique index
boolean datatype
true or null
inapplicable
concatenation
join criteria
missing values
dml statements
logical result
third manifesto
iso sql standard
predicate evaluates
data manipulation language
microsoft sql server
widespread acceptance
procedural extensions
comparison predicates
closed world assumption
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