oracle11g

In Oracle, what is the equivalent to MySQL's UNSIGNED? I have the following query, only it doesn't work: CREATE TABLE foo ( id INT UNSIGNED NOT NULL PRIMARY KEY ); Edit: My purpose is to save space, because for some fields I won't be using negative values. Alternatively, it would answer my question of someone confirms that what I'm asking for is impossible in Oracle 11g, or if it's possible, but not straightforward to do (more than 3 lines of code per unsigned int). Also, It's not necessarily about int . I also use smallint and tinyint. If you want to match the restrictions shown here , you

CREATE TABLE test (id NUMBER(3)); INSERT INTO test VALUES (1); INSERT INTO test VALUES (2); INSERT INTO test VALUES (2); INSERT INTO test VALUES (3); INSERT INTO test VALUES (4); INSERT INTO test VALUES (4); INSERT INTO test VALUES (5); I want to make the numbers in test unique (like {1,2,3,4,5,6,7} - i.e. remove doubles) using this query: UPDATE test u SET u.id = (SELECT max(nn.id) FROM test nn) + 1 WHERE 1 < ( SELECT tt.rown FROM (SELECT rowid, row_number() over ( partition by t.id order by t.id) AS rown FROM test t) tt WHERE tt.rowid = u.rowid ); The above query updates the table to {1,2,3

i'v been learning SQL for the last week but I am unsure how to correctly add a case statement within a check constraint. Can anybody give me any pointers? I have the following grade table: CREATE TABLE Grade ( salary_grade char(1) NOT NULL CHECK (salary_grade = UPPER(salary_grade)), CONSTRAINT ck_grade_scale CHECK( CASE WHEN salary_grade = '[A-D]' THEN salary_scale = 'S1' WHEN salary_grade = '[D-G]' THEN salary_scale = 'S2' END) salary_scale char(2) DEFAULT 'S1' NOT NULL, CONSTRAINT pk_grade PRIMARY KEY (salary_grade), CONSTRAINT ck_salary_grade CHECK (REGEXP_LIKE(salary_grade, '[A-G]', 'c')),

Is is possible to find out the datatype of a column of a cursor or variable within block without using system tables? While I understand that I can use the system tables to find out this information it would be a lot slower. Something like, declare my_column_data_type varchar2(30); begin my_column_data_type := all_tables.table_name%type; dbms_output.put_line(my_column_data_type); end; I can't find any way of doing it without resorting to dbms_sql , which would be overkill for my eventual purpose. But, Oracle already has all the information to hand. If I were to try to assign a varchar2 to a

I have to select some data from Oracle 11g database, but I can't seem to figure out why following select query is failing: SELECT INFO_ID, INFO_DETAIL, IMPORTANT_FLG, DELETE_FLG, CREATE_TIME, DISPLAY_ORDER FROM TABLE_NAME WHERE TO_DATE(TO_CHAR(CREATE_TIME, 'YYYY/MM/DD'), 'YYYY/MM/DD') BETWEEN TO_DATE(TO_CHAR(:fromDate, 'YYYY/MM/DD'), 'YYYY/MM/DD') AND TO_DATE(TO_CHAR(:toDate, 'YYYY/MM/DD'), 'YYYY/MM/DD') ORDER BY IMPORTANT_FLG DESC NULLS LAST , DISPLAY_ORDER ASC NULLS LAST, CREATE_TIME DESC, INFO_ID ASC The query is failing with following error message: ORA-01481: invalid number format model

I have a table where I am storing certain conditions along with input parameters as shown below: CONDITION | INPUT_PARAMS --------------------------------------------------------- :p_end_date < :p_start_date | v_end_date, IN v_start_date :p_joining_day = 'MONDAY' | v_joining_day I want to use execute immediate to evaluate the conditions. select condition, input_param into v_execute_condition, v_input_param From table; v_execute_statement := 'IF '||v_execute_condition ||' '|| 'THEN :o_flag := ''Y'';' ||' '|| 'ELSE :o_flag := ''N'';' ||' '|| 'END IF;'; v_execute_statement := 'BEGIN '||v_execute

我的操作系统为Win7旗舰版，.NET版本为4.5，log4net版本为1.2.15，Oracle版本为11g。 使用log4net建立一个最简单的DEMO，可以参考我的上一篇博客： http://my.oschina.net/Tsybius2014/blog/687750 log4net支持将日志打印到数据库中，将日志中指定的内容打印到数据库中特定字段的方法有多种，本文选取一种较为灵活的方式，即继承ILog接口建立子接口。 首先在Oracle数据库中建立一张表，建表SQL如下： CREATE TABLE PROGRAM_LOG ( DATETIME TIMESTAMP(3), THREAD VARCHAR2(255), LOG_LEVEL VARCHAR2(255), LOGGER VARCHAR2(255), SYS_CODE VARCHAR2(10), MESSAGE VARCHAR2(4000) ); 我建立的工程结构如下： 其中，log4net.config中保存了Appender相关配置 <?xml version="1.0" encoding="utf-8" ?> <configuration> <configSections> <section name="log4net" type="System.Configuration