Simple example: create or replace Function MY_FUNC ( p_par IN number ) RETURN varchar2 IS BEGIN return (Select name from my_table where id = p_par); END; create or replace Function MY_FUNC ( p_year IN number, p_month IN number, p_day IN number ) RETURN varchar2 IS v_return va...
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 ...
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...
Example 2-50 Simple CASE Expression 代码语言:javascript 代码运行次数:0 运行 AI代码解释 DECLAREgradeCHAR(1):='B';appraisalVARCHAR2(20);BEGINappraisal:=CASEgradeWHEN'A'THEN'Excellent'WHEN'B'THEN'Very Good'WHEN'C'THEN'Good'WHEN'D'THEN'Fair'WHEN'F'THEN'Poor'ELSE'No such grade'END;DBMS_OUTPU...
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?
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...
function GetActivityLabel (actid in number) return varchar2; Description Returns the instance label of an activity, given the internal activity instance ID. The label returned has the following format, which is suitable for passing to other Workflow Engine APIs, such as CompleteActivity and Handle...
For example, if you select TCP, you must supply the port on which the listener is listening for connection requests to the target database. The default TCP configuration uses port 1521. Create a snapshot or transactional publication, enable it for non-SQL Server Subscribers, and then create ...
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: ...