Tag: databases

Outer joins

Multi-table updates and deletes

Equi-joins

Equi-join with a text column in select list

All select lists in the UNION must have the same number of expressions

Corresponding columns must have the same column names

Corresponding columns must be of the same datatype or the server must be able to implicitly convert them

Corresponding columns must be in the same order

Duplicate rows are removed from the result set by default

ASE evaluates a statement containing union operators from left to right

Order by and group by clauses are not allowed in a union query

The into clause can be used only in the first query

the inserted and deleted tables are created manually

triggers can be disabled using alter table

a single trigger can be created for both insert and delete

@@sqlstatus contains the number of rows affected

0

1

2

3

'return', without a return value

'rollback transaction'

'rollback trigger'

the built-in function 'update()'

sysprocedures

syscomments

syslogs

systext

127

255

16384

equal to the server page size

insert

update

insert, update, delete

delete,update

Index

Cluster

Package

DB links

Function