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Version: 1.1.0

Casting

Casting

In the SurrealDB type system, values can be converted to other values efficiently. This is useful if input is specified in a query which must be of a certain type, or if a user has provided a parameter with an incorrect type.

TypeDescription
<bool>Casts the subsequent value into a boolean
<int>Casts the subsequent value into a int
<float>Casts the subsequent value into a float
<string>Casts the subsequent value into a string
<number>Casts the subsequent value into a decimal
<decimal>Casts the subsequent value into a decimal
<datetime>Casts the subsequent value into a datetime
<duration>Casts the subsequent value into a duration

<bool>​

The <bool> casting function converts a value into a boolean.

SELECT * FROM <bool> "true";

true
SELECT * FROM <bool> "some truthy value";

true
SELECT * FROM <bool> 1.375;

true
SELECT * FROM <bool> 1.375;

false

<int>​

The <int> casting function converts a value into an integer.

SELECT * FROM <int> 13.572948467293847293841093845679289;

13
SELECT * FROM <int> "13.572948467293847293841093845679289";

13 
SELECT * FROM <int> "some truthy value";

0
SELECT * FROM <int> true;

1
SELECT * FROM <int> false;

0


<float>​

The <float> casting function converts a value into a floating point number.

SELECT * FROM <float> 13.572948467293847293841093845679289;

13.572948467293847
SELECT * FROM <float> "13.572948467293847293841093845679289";

13.572948467293847
SELECT * FROM <float> "some truthy value";

0.0
SELECT * FROM <float> true;

1.0
SELECT * FROM <float> false;

0.0

<string>​

The <string> casting function converts a value into a string.

SELECT * FROM <string> true;

"true"
SELECT * FROM <string> 1.3463;

"1.3463"
SELECT * FROM <string> false;

"false"

<number>​

The <number> casting function converts a value into an infinite precision decimal number.

SELECT * FROM <number> 13.572948467293847293841093845679289;

"13.572948467293847293841093845679289"
SELECT * FROM <number> "13.572948467293847293841093845679289";

"13.572948467293847293841093845679289"
SELECT * FROM <number> "some truthy value";

"0"
SELECT * FROM <number> 1.193847193847193847193487E11;

"119384719384.7193847193487"
SELECT * FROM <number> true;

"1"

<decimal>​

The <decimal> casting function converts a value into an infinite precision decimal number.

SELECT * FROM <decimal> 13.572948467293847293841093845679289;

"13.572948467293847293841093845679289"
SELECT * FROM <decimal> "13.572948467293847293841093845679289";

"13.572948467293847293841093845679289"
SELECT * FROM <decimal> "some truthy value";

"0"
SELECT * FROM <decimal> 1.193847193847193847193487E11;

"119384719384.7193847193487"
SELECT * FROM <decimal> true;

"1"

<datetime>​

The <datetime> casting function converts a value into a datetime.

SELECT * FROM <datetime> "2022-06-07 will be parsed";

"2022-06-07"

<duration>​

The <duration> casting function converts a value into a duration.

SELECT * FROM <duration> "1h30m will be parsed";

"1h30m"