Data Types JSONData Types ❮ PreviousNext ❯ Valid Data Types In JSON, values must be one of the following data types: a string a number an object (JSON object) an array a boolean null JSON valuescannotbe one of the following data types:...
json类型默认值固定是NULL json类型使用character set ofutf8mb4and a collation ofutf8mb4_bin,大小写敏感 mysql>SELECTJSON_ARRAY('x')=JSON_ARRAY('X');+---+|JSON_ARRAY('x')=JSON_ARRAY('X')|+---+|0|+---+mysql>SELECTJSON_VALID('null'),JSON_VALID('Null'),JSON_VALID('NULL');+-...
theodps.sql.type.json.enableparameter is set to false by default. Therefore, if you want to use JSON data types for an existing MaxCompute project, you must run theset odps.sql.type.json.enable=true;command to enable the JSON data type feature. You...
You need to be a bit careful when you do data roundtrips between Python and JSON because they don’t share the same set of data types. Still, the JSON format is a great way to save and exchange data. In this tutorial, you learned how to: Understand the JSON syntax Convert Python ...
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RawValues String Add-on parameters, which are base64-encoded strings in JSON/Note: This field may return null, indicating that no valid values can be obtained. Phase String Add-on statusNote: This field may return null, indicating that no valid values can be obtained. Reason String Reason ...
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Arcade includes five geometry types: Point Multipoint Polyline Polygon Extent Curve objects Since version 1.25 A circular arc, an elliptic arc, and a cubic Bézier curve can be represented as a JSON curve object. A curve object is a segment in a Polyline or Polygon. It cannot be used as ...
You can also obtain JSON values from a number of functions supplied by MySQL for this purpose (see Section 12.17.2, “Functions That Create JSON Values”) as well as by casting values of other types to the JSON type using CAST(value AS JSON) (see Converting between JSON and non-JSON va...
The default value is blink. The different action types passed in this parameter take effect only when the SecurityLevel is 2, 4, or 5; otherwise, the interface reports an error. LivenessRetryLimit Integer No Control liveness retry number.The value range is 1-99....