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select case color
when 1 then 'red'
when 2 then 'green'
when 3 then 'blue'
else 'black'
end as 'colorName',
foodName from foods
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select foodName, case
when foodPrice is null then 0
else foodPrice
end as price,
foodCost from foods left join foodPrices on foods.foodId = foodPrices.foodId
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when nullif(foodPrice, null) is null then 0
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select top 10 * from INFORMATION_SCHEMA.SCHEMATA
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select top 10 * from INFORMATION_SCHEMA.TABLES
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select top 10 * from INFORMATION_SCHEMA.COLUMNS
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create function dbo.regexReplace
(
@source varchar(5000), --Ô×Ö·û´®
@regexp varchar(1000), - ......
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use pubs
go
--2.´ò¿ªÈ«ÎÄË÷ÒýÖ§³Ö
--execute sp_fulltext_database 'enable'
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