OH_Predicates
Overview
Defines the predicates for RDB stores.
Since: 10
Related module: RDB
Summary
Member Variables
| Name | Description |
|---|---|
| id | Unique identifier of the OH_Predicates struct. |
| equalTo | Pointer to the function used to set a predicates object to match the field whose value is equal to the specified value. |
| notEqualTo | Pointer to the function used to set a predicates object to match the field whose value is not equal to the specified value. |
| beginWrap | Pointer to the function used to add a left parenthesis to the predicates. |
| endWrap | Pointer to the function used to add a right parenthesis to the predicates. |
| orOperate | Pointer to the function used to add the OR operator to the predicates. |
| andOperate | Pointer to the function used to add the AND operator to the predicates. |
| isNull | Pointer to the function used to set a predicates object to match the field whose value is null. |
| isNotNull | Pointer to the function used to set a predicates object to match the field whose value is not null. |
| like | Pointer to the function used to set a predicates object to match a string that is similar to the specified value. |
| between | Pointer to the function used to set a predicates object to match the field whose value is within the specified range. |
| notBetween | Pointer to the function used to set a predicates object to match the field whose value is out of the specified range. |
| greaterThan | Pointer to the function used to set a predicates object to match the field with value greater than the specified value. |
| lessThan | Pointer to the function used to set a predicates object to match the field with value less than the specified value. |
| greaterThanOrEqualTo | Pointer to the function used to set a predicates object to match the field with value greater than or equal to the specified value. |
| lessThanOrEqualTo | Pointer to the function used to set a predicates object to match the field with value less than or equal to the specified value. |
| orderBy | Pointer to the function used to set a predicates object to sort the values in a column in ascending or descending order. |
| distinct | Pointer to the function used to set a predicates object to filter out duplicate records. |
| limit | Pointer to the function used to set a predicates object to specify the maximum number of records. |
| offset | Pointer to the function used to set a predicates object to specify the start position of the returned result. |
| groupBy | Pointer to the function used to set a predicates object to group rows that have the same value into summary rows. |
| in | Pointer to the function used to set a predicates object to match the field with the value within the specified range. |
| notIn | Pointer to the function used to set a predicates object to match the field with the value out of the specified range. |
| clear | Pointer to the function used to clear a predicates instance. |
| destroy | Destroys an OH_Predicates object and reclaims the memory occupied. |