介绍
- java.sql.ParameterMetaData
- public interface ParameterMetaData extends Wrapper
- 预备语句参数的元数据
API
常量
- parameterNoNulls : 0
- parameterNullable : 1
- parameterNullableUnknown : 2
- parameterModeUnknown : 0
- parameterModeIn : 1
- parameterModeInOut : 2
- parameterModeOut : 4
public
- getParameterClassName
- getParameterCount
- getParameterMode
- getParameterType
- getParameterTypeName
- getPrecision
- 精度,例如 123.45 的精度是5
- getScale
- 标度,例如 123.45 的标度是2
- isNullable
- isSigned
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