oracle support phone number

######################################################################1, Oracle Industry entry must look: Oracle DBA Database Senior Engineer Career Learning guide and career planning (free)Http://edu.51cto.com/course/8614.html2, Oracle Cloud Database senior Engineer Micro-position (high-paying employment. Counseling training. 0 Yuan Admission)Course Registration

--- Oracle debugging: setserveroutputon; shoerrorssetautotraceon; selecttextfromuser_sourcewherename --- Oracle debugging: set serveroutput on; sho errorsset autotrace on; select text from user_source where name = --- Oracle debugging:Set serveroutput on;Sho errorsSet autotrace on;Select text from user_source where;--- The

the expected value is 0, in the returned value, 68% is between + 1 and-1, 95% is between + 2 and-2, and 99% is between + 3 and-3. Function random return BINARY_INTEGER, (Generate Random Numeric Values ), Function string (opt char, length Number) return varchar2 (the maximum is 60), returns a string of the specified length (Create Random Strings), opt seed values: 'A', 'A' n Q: My questions at work: the supervisor asked me to randomly retrieve quali

random numeric values ),Function string (OPT char, length number) return varchar2 (the maximum is 60), returns a string of the specified length (create random strings), opt seed values:'A', 'A' n Q: My questions at work: the supervisor asked me to randomly retrieve qualified email or mobile phone number users for an activity to issue award notifications or oth

-------------------------------------------------------------------------------- Oracle database11genterprise Edition release11.2.0.1.0-64bit Production Pl/sql Release 11.2.0.1.0-production CORE 11.2.0.1.0 Production TNS for Linux:version 11.2.0.1.0-production Nlsrtl Version 11.2.0.1.0-production sql> CREATE TABLE T_part_hash 2 (ID number) 3 SEGMENT Creation DEFERRED 4 PARTITION by HASH (ID) 5 p

way the Oralce standard gets the year is simple: Select To_char (to_date (' 1997/01/01 ', ' yyyy/mm/dd '), ' YYYY ') from dual; Select To_char (to_date (' 1997/12/31 ', ' yyyy/mm/dd '), ' YYYY ') from dual; Are all back to 1997. 2. ISO standard-IYYY Select To_char (to_date (' 1997/01/01 ', ' yyyy/mm/dd '), ' iyyy ') from dual; Select To_char (to_date (' 1997/12/31 ', ' yyyy/mm/dd '), ' iyyy ') from dual;Return: 1997, 1998 Is it strange that the 1997/12/31 year was 1998. In fact, the reas

SELECT‘-100‘ FROMdualWHEREREGEXP_LIKE(‘-100‘,‘(^[+-]?\d{0,}\.?\d{0,}$)‘);Regexp_like usage:Turn]oracle 10g Regular expression Regexp_like usageJanuary 13, 2010 Wednesday 14:29 The source is at the bottom of the article./*There are four main functions in Oracle that support regular expressions:1,regexp_like: Similar to the function of like2,REGEXP_INS

Tags: ESC arch phone src ber step Delete varchar add--Modify the Data Oracle field type from number to varchar--Example: Modifying the Rescue_phone field type in the Ta_sp_org_invoice table, converting from number to varchar--STEP1: Add an original type buffer fieldALTER TABLE Ta_sp_org_invoice add permile_temp

Tags: query menu error article incorrect sdn ACL number write codeArticle turned from: 68490265Oracle Stitching Strings concat Small things to be aware ofIn the SSM framework when writing code, because the database replaced by Oracle, when the fuzzy query data suddenly found an errorSELECT * from Sys_menu where URL like concat ('% ', #{rolename}, '% ')The number

the least number of employees: grouping function, sorting, subquery, and rownumsql statement: [SQL] select * from (select count (*) coun, d_id deptId from t_emp group by d_id order by coun asc) where rownum = 1 www.2cto.com analysis: Step 1: select count (*) coun, d_id deptId from t_emp group by d_id query t_emp table, query the number of people in each department by the Department d_id group. Step 2: sele

Delete all If you are deleting all the data for a table and do not need to roll back, use TRUNCATE to OK. About Trancate See here http://blog.csdn.net/gnolhh168/archive/2011/05/24/6442561.aspx Sql> TRUNCATE TABLE table_name; Conditional Deletion If there is a condition for deleting the data, such as delete from tablename where col1 = ' Lucy '; At this time, in addition to Gazzo, you can delete the Add no logging option, do not write log speed up the deletion Quote SB. "The tens of millions of-

What is the difference between number and BINARY_DOUBLE in oracle?The main advantage is: it is more efficient than number, faster, and takes less space, but the version compatibility is poor.Numeric numeric typeNUMBER: this is a real decimal data type. It is also the only numeric type in PL/SQL that is fully platform-independent.PLSINTEGER and BINARYINTEGER: Thes

, (Generate random Numeric Values), function string (opt char,length number) return VARCHAR2 (the maximum is 60) returns a string of the specified length (Create Random Strings), opt seed V Alues: ' A ', ' a ' n Q: I work the problem: The supervisor let me for an event to randomly remove some qualified email or mobile phone number users to issue award-winning no