create or replace function Fuc_Get_AuthorName(RecID_In in varchar2, AdmID_In in varchar2) return varchar2 is Result varchar2(8000); names varchar2(4000); Cursor Cur_Get_AuthorNameS Is SELECT PEOPLENAME From TB_NEWS_CONTRI_AUTHOR Where REC_ID=RecID_In; Cursor Cur_Get_AuthorName Is SELECT PEOPLENAME From TB_NEWS_CONTRI_AUTHOR Where REC_ID=RecID_In And UNITID=AdmID_In; begin If RecID_In Is NULL Then Return ''; End If; If AdmID_In Is NULL Then open Cur_Get_AuthorNameS; fetch Cur_Get_AuthorNameS into names; while Cur_Get_AuthorNameS%FOUND loop Result:=Result || names || '、'; fetch Cur_Get_AuthorNameS into names; end loop; close Cur_Get_AuthorNameS; ELSE open Cur_Get_AuthorName; fetch Cur_Get_AuthorName into names; while Cur_Get_AuthorName%FOUND loop Result:=Result || names || '、'; fetch Cur_Get_AuthorName into names; end loop; close Cur_Get_AuthorName; End If; if(Result is null) Then Return ''; End If; if length(Result)>0 then Result:=substr(Result,1,length(Result)-1); end if; return(Result); Exception When OTHERS Then Return ''; end Fuc_Get_AuthorName;
1.输出用"、"符合分隔多个作者列表
2.获取数据库表的主键最大值
3.根据分割类来分割字符串
4.计算周岁的函数
6.带排序的oracle分页存储过程(来自网络)
--输入order by 的sqeuence是,应该为“ desc”或者“ asc” --若输入两个order by则,v_order_field=" a[sequence] ,order by b " CREATE OR REPLACE PROCEDURE TABLEPAGE_SELECT(v_page_size int, --the size of a page of list v_current_page int, --the current page of list v_table_name varchar2, --the talbe name v_order_field varchar2,--the order field v_order_sequence varchar2,--the order sequence should by "_desc"or "_asc",_is blank. --v_sql_select varchar2, --the select sql for procedure --v_sql_count varchar2, --the count sql for procedure --v_out_recordcount OUT int, --the num of return rows p_cursor OUT refcursor_pkg.return_cursor) as v_sql varchar2(3000); --the sql for select all rows of list v_sql_count varchar2(3000); --the count sql for procedure v_sql_order varchar2(2000); --the order of list v_count int; -- the amount rows fo original list v_endrownum int; --the end row num of the current page v_startrownum int; --the start row num of the current page BEGIN ----set the order of list if v_order_field!='NO' then v_sql_order :=' ORDER BY '|| v_order_field ||' '||v_order_sequence; else v_sql_order :=''; end if; ----catch the amount rows of list v_sql_count:='SELECT COUNT(ROWNUM) FROM '||v_table_name; execute immediate v_sql_count into v_count; -- v_out_recordcount := v_count; ----set the value of start and end row if v_order_sequence='desc' then v_endrownum:=v_count-(v_current_page-1)*v_page_size; v_startrownum:=v_endrownum - v_page_size + 1; else v_endrownum:= v_current_page * v_page_size; v_startrownum := v_endrownum - v_page_size + 1; end if; ----the sql for page slide v_sql := 'SELECT * FROM (SELECT '||v_table_name||'.*, rownum rn FROM '||v_table_name||' WHERE rownum <= ' || to_char(v_endrownum) ||' '|| v_sql_order||') WHERE rn >= ' || to_char(v_startrownum)||' '||v_sql_order; open p_cursor for v_sql; END TABLEPAGE_SELECT;
--请问如何用SQL语句获取指定表的表结构 --该表应包含以下字段:字段名、字段类型、字段大小、是否为空 SELECT column_name AS FIELDNAME,data_type AS TYPE,data_length ASSIZE, nullable AS ISNULL FROM ALL_tab_columns where table_name = 'TB_SYS_ORG_MEMBER' SELECT * FROM ALL_TAB_COLUMNS where owner='ZSZGW' and table_name='TB_SYS_ORG_MEMBER'; --根据字段注释查询字段 SELECT A.TABLE_NAME,A.COMMENTS,B.COLUMN_NAME,B.COMMENTS FROM USER_TAB_COMMENTS A,USER_COL_COMMENTS B WHERE A.TABLE_NAME=B.TABLE_NAME and b.COMMENTS like '%发放%' --介绍 and a.table_name='TB_SYS_ORG_MEMBER'; --1、SELECT * FROM ALL_TAB_COLUMNS where owner='USE1' and table_name ='B'; --2、desc 表名 --3、 SELECT column_name AS FIELDNAME,data_type,data_length, nullable AS ISNULL FROM user_tab_columns where table_name = 'TB_SYS_ORG_MEMBER' SELECT * FROM user_tab_columns where table_name = 'TB_SYS_ORG_MEMBER' select userenv ('terminal') from dual select to_char(sysdate,'yyyy-MM-dd HH24:mi:ss') from dual;--mi是分钟 select user from dual SELECT S.SID SESSION_ID, S.USERNAME, DECODE(LMODE, 0, 'None', 1, 'Null', 2, 'Row-S (SS)', 3, 'Row-X (SX)', 4, 'Share', 5, 'S/Row-X (SSX)', 6, 'Exclusive', TO_CHAR(LMODE)) MODE_HELD, DECODE(REQUEST, 0, 'None', 1, 'Null', 2, 'Row-S (SS)', 3, 'Row-X (SX)', 4, 'Share', 5, 'S/Row-X (SSX)', 6, 'Exclusive', TO_CHAR(REQUEST)) MODE_REQUESTED, O.OWNER||'.'||O.OBJECT_NAME||' ('||O.OBJECT_TYPE||')', S.TYPE LOCK_TYPE, L.ID1 LOCK_ID1, L.ID2 LOCK_ID2 FROM V$LOCK L, SYS.DBA_OBJECTS O, V$SESSION S WHERE L.SID = S.SID AND L.ID1 = O.OBJECT_ID ;
5.获取数据表架构信息
CREATE OR REPLACE FUNCTION Fuc_Get_FullAge(BirthDay_In in date, CallDay_In in date) RETURN integer IS age integer; BEGIN /* **给出出生日期,计算日期,返回周岁 **1、如果计算日期和出生日期的月份相同,就要判断计算日期是否过了出生日期 **2、如果是2月29日出生的,那如果是闰年,就是3月1号算增加1岁,如果不是闰年,3月2日增加1岁 ** */ if BirthDay_In is null or CallDay_In is null then return null; end if; --计算日期比出生日期小,返回NULL if (CallDay_In - BirthDay_In)<0 then return null; end if; --计算日期 = 出生日期,返回0 if (BirthDay_In - CallDay_In)=0 then return 0; end if; age := extract(year from CallDay_In)-extract(year from BirthDay_In)-1; ----如果月份相同,计算日期>出生日期,加1 if (extract(month from BirthDay_In) = extract(month from CallDay_In)) and (extract(day from BirthDay_In) < extract(day from CallDay_In)) then age := age + 1; end if; ----如果计算月份比出生月份大,加1 if (extract(month from BirthDay_In) < extract(month from CallDay_In)) then age := age + 1; end if; ----如果出生日期是2月29日,而计算日期是3月1日,那么计算日期是闰年,要减1 if (extract(month from BirthDay_In) = 2 and extract(day from BirthDay_In) = 29 and extract(month from CallDay_In) = 3 and extract(day from CallDay_In) = 1 and ((extract(year from CallDay_In) mod 4=0 and extract(year from CallDay_In) mod 100!=0 ) or extract(year from CallDay_In) mod 400=0)) then age := age - 1; end if; return age; Exception When OTHERS Then Return 0; end;
CREATE OR REPLACE FUNCTION sf_split_string (strings VARCHAR2, substring VARCHAR2) RETURN Varchar2Varray IS /*---------------------------------------------------------------------------* 功能: 根据分割类来分割字符串 输入参数: strings --输入字符串(如:aaaa|bbbb|cccc) substring --用于分割的标志(如:' | ' ) 输出参数: 数组 *---------------------------------------------------------------------------*/ len integer := LENGTH(substring); lastpos integer := 1 - len; pos integer; num integer; i integer := 1; ret Varchar2Varray := Varchar2Varray(NULL); BEGIN LOOP pos := instr(strings, substring, lastpos + len); IF pos > 0 THEN --found num := pos - (lastpos + len); ELSE --not found num := LENGTH(strings) + 1 - (lastpos + len); END IF; IF i > ret.LAST THEN ret.EXTEND; END IF; ret(i) := SUBSTR(strings, lastpos + len, num); EXIT WHEN pos = 0; lastpos := pos; i := i + 1; END LOOP; RETURN ret; END;
CREATE OR REPLACE FUNCTION Fuc_Get_MaxId( TableName_In IN Varchar2,FieldName_In IN Varchar2,CallMode_In IN Varchar2 ) Return Varchar2 IS /*---------------------------------------------------------------------------* 功能: 获取数据库表的主键最大值。 输入参数: TableName_In --输入需要查询数据库表名称 FieldName_In --输入数据库表对应主键的字段名 CallMode_In --输入调用方式,缺省为'0' 输出参数: 新的12位主键值 *---------------------------------------------------------------------------*/ SqlStrTmp Varchar2(500); MaxFieldTmp Varchar2(12); MaxFieldVar Varchar2(12); TableNameTmp Varchar2(50); FieldNameTmp Varchar2(50); SysFieldTmp Varchar2(4); Cursor Cur_Sys_Var Is Select SubStrb(VarValue,1,4) VarValue From Tb_Sys_Var Where VarName='CurrCode'; BEGIN If TableName_In Is NULL Or FieldName_In Is NULL Then Return '000000000000'; End If; TableNameTmp := Upper( TableName_In ); FieldNameTmp := Upper( FieldName_In ); Open Cur_Sys_Var; Fetch Cur_Sys_Var Into SysFieldTmp; If Cur_Sys_Var%NOTFOUND Then Close Cur_Sys_Var; Return '000000000000'; End if; Close Cur_Sys_Var; SqlStrTmp := 'SELECT MAX(To_Number('||FieldNameTmp||')) FROM '||TableNameTmp ||' WHERE '||FieldNameTmp||' LIKE '''||SysFieldTmp||'%'''; Execute Immediate SqlStrTmp INTO MaxFieldTmp; MaxFieldVar := SysFieldTmp||Lpad( To_Char(To_Number(Substrb(Nvl(MaxFieldTmp,SysFieldTmp||'00000000'),5))+1),8,'0'); Return MaxFieldVar; Exception When OTHERS Then Return SysFieldTmp||'00000001'; END;