(-1); 1-- Describe a builtin aggregate function>DESCRIBEFUNCTIONmax; Function: max Class: org.apache.spark.sql.catalyst.expressions.aggregate.Max Usage: max(expr) - Returns the maximum value of `expr`.- elements
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(Function returns SQL_SUCCESS_WITH_INFO.) 07009 Invalid descriptor index (DM) The value specified for the argument ParameterNumber is less than 1. The value specified for the argument ParameterNumber was greater than the number of parameters in the associated SQL statement. The parameter marker ...
function_name(column|expression,[arg1,arg2,...]) 转化函数: LOWER 转小写 UPPER 转大写 INITCAP 首字母大写 CONCAT 字符连接 SUBSTR 字符截取 LENGTH 取字符长度 NVL select last_name from s_emp where lower(last_name) = 'biri'; (先把表中的数据转化为小写再和指定字段比较) 注:SQL语句不区分大小写...
NumParams *sizeof(SQLINTEGER)); SQLINTEGER * LenOrIndArray = (SQLINTEGER *)malloc(NumParams *sizeof(SQLINTEGER));for(i =0; i < NumParams; i++) {// Describe the parameter.SQLDescribeParam(hstmt, i +1, &DataType, &ParamSize, &DecimalDigits, &Nullable);// Call a helper fun...
SQLDescribeParam(hstmt, i + 1, &DataType, &ParamSize, &DecimalDigits, &Nullable); // Call a helper function to allocate a buffer in which to store the parameter // value in character form. The function determines the size of the buffer from // the SQL data type and parameter size re...
This type replaces eq_ref for some IN subqueries of the following form: value IN (SELECT primary_key FROM single_table WHERE some_expr) unique_subquery is just an index lookup function that replaces the subquery completely for better efficiency. ...
This parameter can be a string that contains the name of the object to be described. It must be in the encoding specified by thecharsetparameter in the previous call to theOCIEnvNlsCreate()function. In this case, the string that contains the object name must be in thename1[.name2 ...]...
>DESCRIBEFUNCTIONEXTENDEDabs; Function: abs Class: org.apache.spark.sql.catalyst.expressions.Abs Usage: abs(expr)-Returnsthe absolutevalueofthenumericvalue. ExtendedUsage: Examples: >SELECTabs(-1); 1 -- Describe a builtin aggregate function ...
{DESC|DESCRIBE}FUNCTION[IFEXISTS]<name>(TABLE(<arg_data_type>[,...])[,TABLE(<arg_data_type>[,...])]) Parameters name Specifies the identifier for the function to describe. If the identifier contains spaces or special characters, the entire string must be enclosed in double quotes. Ident...