new oracleParameter(":P_VENDOR_CODE",OracleType.VarChar,20), new oracleParameter(":P_VENDOR_SITE_CODE",OracleType.VarChar,20), new oracleParameter(":P_VAT_CODE",OracleType.VarChar,20), new oracleParameter(":P_ITEM_CODE",OracleType.VarChar,20),: 而使用procedure的时候是不用:号的 Step4:...
CREATE OR REPLACE TRIGGER SYS.set_trace AFTER LOGON ON DATABASE WHEN (USER like '&USERNAME') DECLARE lcommand varchar(200); BEGIN EXECUTE IMMEDIATE 'alter session set tracefile_identifier=''From_Trigger'''; EXECUTE IMMEDIATE 'alter session set statistics_level=ALL'; EXECUTE IMMEDIATE 'alter s...
CREATE OR REPLACE FUNCTION to_string ( nt_in IN varchar2_ntt, delimiter_in IN VARCHAR2 DEFAULT ',' ) RETURN CLOB IS v_idx PLS_INTEGER; v_str CLOB; BEGIN IF nt_in IS NULL THEN RETURN NULL; END IF; v_str := EMPTY_CLOB(); IF nt_in IS EMPTY THEN RETURN v_str; END IF; v_...
RAW if the measure column is RAW; otherwise the return value is VARCHAR2. Aggregate Examples The following single-set aggregate example lists all of the employees in Department 30 in the hr.employees table, ordered by hire date and last name: SELECT LISTAGG(last_name, ‘; ‘) WITHIN GROUP ...
MEMBER FUNCTION getName return varchar2 Description Returns the value of theNAMEattribute in aWF_PARAMETER_Tobject. getValue PL/SQL Syntax MEMBER FUNCTION getValue return varchar2 Description Returns the value of theVALUEattribute in aWF_PARAMETER_Tobject. ...
The return value of the Oracle SUBSTR function is always the same data type as the one provided for string. So, if STRING is a VARCHAR2, the function returns VARCHAR2. Examples of the SUBSTR Function Here are some examples of the Oracle SUBSTR function. I find that examples are the best...
Return Value Type CHAR, VARCHAR2, NCHAR, or NVARCHAR2 Applies to Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i, Oracle 8i Examples: Oracle SOUNDEX function The following example returns the employees whose last names are a phonetic representation of "Smyth": ...
The Oracle INSTR function is a SQL function used to search for a specific substring within a given string and return the position where this substring first appears. If the substring is not found, the function returns zero.2. When should we use the Oracle INSTR function?
Restriction on LENGTHB The LENGTHB function is supported for single-byte LOBs only. It cannot be used with CLOB and NCLOB data in a multibyte character set. Examples The following example uses the LENGTH function using a single-byte database character set: ...
Union返回数据集-Spark3.1.2 您可以使用toDF()将数据集转换为数据帧: mergeDF_A.union(mergeDF_B).toDF() Oracle函数返回表 “最好”就看情况了。返回ref游标或集合,以您喜欢的为准。 For example: SQL> create or replace function f_test_rc 2 return sys_refcursor 3 is 4 rc sys_refcursor; 5 begi...