資料類型 data type

資料類型 data type
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資料類型

Name Aliases Description
bigint int8 signed eight-byte integer
bigserial serial8 autoincrementing eight-byte integer
bit [ (n) ] fixed-length bit string
bit varying [ (n) ] varbit variable-length bit string
boolean bool logical Boolean (true/false)
box rectangular box on a plane
bytea binary data (“byte array”)
character [ (n) ] char [ (n) ] fixed-length character string
character varying [ (n) ] varchar [ (n) ] variable-length character string
cidr IPv4 or IPv6 network address
circle circle on a plane
date calendar date (year, month, day)
double precision float8 double precision floating-point number (8 bytes)
inet IPv4 or IPv6 host address
integer int, int4 signed four-byte integer
interval [ fields ] [ (p) ] time span
json JSON data
line infinite line on a plane
lseg line segment on a plane
macaddr MAC (Media Access Control) address
money currency amount
numeric [ (p, s) ] decimal [ (p, s) ] exact numeric of selectable precision
path geometric path on a plane
point geometric point on a plane
polygon closed geometric path on a plane
real float4 single precision floating-point number (4 bytes)
smallint int2 signed two-byte integer
smallserial serial2 autoincrementing two-byte integer
serial serial4 autoincrementing four-byte integer
text variable-length character string
time [ (p) ] [ without time zone ] time of day (no time zone)
time [ (p) ] with time zone timetz time of day, including time zone
timestamp [ (p) ] [ without time zone ] date and time (no time zone)
timestamp [ (p) ] with time zone timestamptz date and time, including time zone
tsquery text search query
tsvector text search document
txid_snapshot user-level transaction ID snapshot
uuid universally unique identifier
xml XML data

參考資料

Numeric 數字

Numeric 數字