怎么在Oracle中對用戶中表的數(shù)據(jù)量進(jìn)行統(tǒng)計(jì)?相信很多沒有經(jīng)驗(yàn)的人對此束手無策,為此本文總結(jié)了問題出現(xiàn)的原因和解決方法,通過這篇文章希望你能解決這個(gè)問題。
成都創(chuàng)新互聯(lián)專業(yè)IDC數(shù)據(jù)服務(wù)器托管提供商,專業(yè)提供成都服務(wù)器托管,服務(wù)器租用,服務(wù)器機(jī)柜租用,服務(wù)器機(jī)柜租用,成都多線服務(wù)器托管等服務(wù)器托管服務(wù)。要想統(tǒng)計(jì)用戶下所有表的數(shù)據(jù)量,可以查看user_tables,此表里面是統(tǒng)計(jì)信息,當(dāng)然這個(gè)可能不太準(zhǔn),要想非常精確,需要直接count表。下面的腳本有異常不中斷,可以重復(fù)執(zhí)行的特點(diǎn)。
create table bk_count_tables ( owner VARCHAR2(30), table_name VARCHAR2(30), part_col varchar2(100),--分區(qū)字段 row_s number, gather_time date ); create index ind_bct_own_table on bk_count_tables(owner,table_name); set serveroutput on declare cursor c_cursor is select s.OWNER, s.TABLE_NAME, col.column_name part_col from dba_tables s, (select owner, name, listagg(column_name, ',') within group(order by null) column_name from (select owner, name, column_name from dba_part_key_columns where owner in ('TEST') and object_type = 'TABLE' and name not like 'BIN$%' union all select owner, name, column_name from dba_subpart_key_columns where owner in ('TEST') and object_type = 'TABLE' and name not like 'BIN$%') group by owner, name) col where s.OWNER in ('TEST') and not regexp_like(table_name, '[0-9]{3,8}') and s.table_name not like '%BAK%' and s.table_name not like '%A2K%' and s.table_name not like 'BK%' and s.table_name not like 'BIN%' and s.OWNER = col.owner(+) and s.TABLE_NAME = col.name(+) order by s.TABLE_NAME ; c_row c_cursor%rowtype; t_rows number; begin for c_row in c_cursor loop begin execute immediate 'select count(*) from bk_count_tables where owner=:1 and TABLE_NAME=:2 and rownum=1' into t_rows using c_row.OWNER,c_row.TABLE_NAME ; if(t_rows = 0) then execute immediate 'select count(*) from "'||c_row.TABLE_NAME||'"' into t_rows; insert into bk_count_tables values(c_row.OWNER,c_row.TABLE_NAME,c_row.part_col,t_rows,sysdate); commit; end if; EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE(c_row.OWNER||'---'||c_row.TABLE_NAME); rollback; end; end loop; end; /
看完上述內(nèi)容,你們掌握怎么在Oracle中對用戶中表的數(shù)據(jù)量進(jìn)行統(tǒng)計(jì)的方法了嗎?如果還想學(xué)到更多技能或想了解更多相關(guān)內(nèi)容,歡迎關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道,感謝各位的閱讀!
文章題目:怎么在Oracle中對用戶中表的數(shù)據(jù)量進(jìn)行統(tǒng)計(jì)-創(chuàng)新互聯(lián)
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