SELECT to_number('123.45') AS numeric_value; 在SQL查询中应用替代方案: 在实际的SQL查询中,可以直接使用CAST或CONVERT函数来替代to_number。 示例查询: sql SELECT CAST(column_name AS DECIMAL(10, 2)) AS numeric_column FROM table_name; 总结来说,虽然MySQL中没有内置的to_number函数,但我们可以通...
DROP TABLE IF EXISTS t CASCADE; CREATE TABLE t (c NUMBER(2,1)); \set SQLTERM / CREATE PROCEDURE p (n NUMBER) AUTHID DEFINER IS default_number NUMBER := 0; BEGIN IF n < 0 THEN RAISE VALUE_ERROR; -- 显式触发 ELSE INSERT INTO t VALUES(TO_NUMBER('100.001', '9G999')); -- 隐...
This can lead to a situation where a range of cells contain a combination of numeric and zero-length string values, and this situation can affect the results of other formulas that reference that range of cells. For example, if A1 and A3 contain numbers, and A2 contains a formula with a ...
NUM_PREC_RADIX (ODBC 2.0) 11 Smallint For numeric data types, either 10 or 2. If 10, the values in COLUMN_SIZE and DECIMAL_DIGITS give the number of decimal digits allowed for the column. For example, a DECIMAL(12,5) column would return a NUM_PREC_RADIX of 10, a COLUMN_SIZE of...
SQL_NUMERIC_FUNCTIONS SQL_STRING_FUNCTIONS SQL_SYSTEM_FUNCTIONS SQL_TIMEDATE_ADD_INTERVALS SQL_TIMEDATE_DIFF_INTERVALS SQL_TIMEDATE_FUNCTIONS Conversion Information The following values of the InfoType argument return a list of the SQL data types to which the data source can convert the specified SQL...
NumericAttributePtr [Output] Pointer to an integer buffer in which to return the value in the FieldIdentifier field of the ColumnNumber row of the IRD, if the field is a numeric descriptor type, such as SQL_DESC_COLUMN_LENGTH. Otherwise, the field is unused. Please note that some drivers...
Price is more than 10, and less than or equal to 20 "Price": [{"numeric": [ ">", 10, "<=", 20 ] } ] Exists ProductName exists "ProductName": [{"exists": true } ] Does not exist ProductName does not exist "ProductName": [{"exists": false } ] ...
Feature: It is a positional number system conversion function that returns the string form of an integer in a specific binary system. The input parameter may be an integer string. If you want to convert the return value of a function to an integer, you can use the CAST function.Return ...
IfParameterTypeis SQL_TYPE_TIME, SQL_TYPE_TIMESTAMP, SQL_INTERVAL_SECOND, SQL_INTERVAL_DAY_TO_SECOND, SQL_INTERVAL_HOUR_TO_SECOND, or SQL_INTERVAL_MINUTE_TO_SECOND, the SQL_DESC_PRECISION field of the IPD is set toDecimalDigits. IfParameterTypeis SQL_NUMERIC or SQL_DECIMAL, the SQL_DESC_...
The func_find function returns a pointer to the function specified by name. If the function does not exist, func_find returns NULL.Syntax FuncPtr func_find(char *name);Return Values A pointer to the chosen function, suitable for de-referencing, or NULL if the function is not found....