Ho alcune grandi domande da condividere:
Esegui questo per ottenere i dati MySQL totali e l'utilizzo dell'indice da parte del motore di archiviazione
SELECT IFNULL(B.engine,'Total') "Storage Engine",
CONCAT(LPAD(REPLACE(FORMAT(B.DSize/POWER(1024,pw),3),',',''),17,' '),' ',
SUBSTR(' KMGTP',pw+1,1),'B') "Data Size", CONCAT(LPAD(REPLACE(
FORMAT(B.ISize/POWER(1024,pw),3),',',''),17,' '),' ',
SUBSTR(' KMGTP',pw+1,1),'B') "Index Size", CONCAT(LPAD(REPLACE(
FORMAT(B.TSize/POWER(1024,pw),3),',',''),17,' '),' ',
SUBSTR(' KMGTP',pw+1,1),'B') "Table Size" FROM
(SELECT engine,SUM(data_length) DSize,SUM(index_length) ISize,
SUM(data_length+index_length) TSize FROM
information_schema.tables WHERE table_schema NOT IN
('mysql','information_schema','performance_schema') AND
engine IS NOT NULL GROUP BY engine WITH ROLLUP) B,
(SELECT 3 pw) A ORDER BY TSize;
Esegui questo per ottenere i dati MySQL totali e l'utilizzo dell'indice per database
SELECT DBName,CONCAT(LPAD(FORMAT(SDSize/POWER(1024,pw),3),17,' '),' ',
SUBSTR(' KMGTP',pw+1,1),'B') "Data Size",CONCAT(LPAD(
FORMAT(SXSize/POWER(1024,pw),3),17,' '),' ',SUBSTR(' KMGTP',pw+1,1),'B') "Index Size",
CONCAT(LPAD(FORMAT(STSize/POWER(1024,pw),3),17,' '),' ',
SUBSTR(' KMGTP',pw+1,1),'B') "Total Size" FROM
(SELECT IFNULL(DB,'All Databases') DBName,SUM(DSize) SDSize,SUM(XSize) SXSize,
SUM(TSize) STSize FROM (SELECT table_schema DB,data_length DSize,
index_length XSize,data_length+index_length TSize FROM information_schema.tables
WHERE table_schema NOT IN ('mysql','information_schema','performance_schema')) AAA
GROUP BY DB WITH ROLLUP) AA,(SELECT 3 pw) BB ORDER BY (SDSize+SXSize);
Esegui questo per ottenere i dati MySQL totali e l'utilizzo dell'indice per database e motore di archiviazione
SELECT Statistic,DataSize "Data Size",IndexSize "Index Size",TableSize "Table Size"
FROM (SELECT IF(ISNULL(table_schema)=1,10,0) schema_score,
IF(ISNULL(engine)=1,10,0) engine_score,
IF(ISNULL(table_schema)=1,'ZZZZZZZZZZZZZZZZ',table_schema) schemaname,
IF(ISNULL(B.table_schema)+ISNULL(B.engine)=2,"Storage for All Databases",
IF(ISNULL(B.table_schema)+ISNULL(B.engine)=1,
CONCAT("Storage for ",B.table_schema),
CONCAT(B.engine," Tables for ",B.table_schema))) Statistic,
CONCAT(LPAD(REPLACE(FORMAT(B.DSize/POWER(1024,pw),3),',',''),17,' '),' ',
SUBSTR(' KMGTP',pw+1,1),'B') DataSize,CONCAT(LPAD(REPLACE(
FORMAT(B.ISize/POWER(1024,pw),3),',',''),17,' '),' ',
SUBSTR(' KMGTP',pw+1,1),'B') IndexSize,
CONCAT(LPAD(REPLACE(FORMAT(B.TSize/POWER(1024,pw),3),',',''),17,' '),' ',
SUBSTR(' KMGTP',pw+1,1),'B') TableSize FROM (SELECT table_schema,engine,
SUM(data_length) DSize,SUM(index_length) ISize,
SUM(data_length+index_length) TSize FROM information_schema.tables
WHERE table_schema NOT IN ('mysql','information_schema','performance_schema')
AND engine IS NOT NULL GROUP BY table_schema,engine WITH ROLLUP) B,
(SELECT 3 pw) A) AA ORDER BY schemaname,schema_score,engine_score;
AVVERTENZA
In ogni query vedrai (SELECT 3 pw)
. Il pw sta per Power Of 1024 per visualizzare i risultati.
(SELECT 0 pw)
visualizzerà il rapporto in byte(SELECT 1 pw)
visualizzerà il rapporto in KiloBytes(SELECT 2 pw)
visualizzerà il rapporto in MegaByte(SELECT 3 pw)
visualizzerà il rapporto in GigaByte(SELECT 4 pw)
visualizzerà il rapporto in TeraBytes(SELECT 5 pw)
visualizzerà il rapporto in PetaBytes (contattami se esegui questo)
Ecco una query del rapporto con un po' meno di formattazione:
SELECT IFNULL(db,'Total') "Database",
datsum / power(1024,pw) "Data Size",
ndxsum / power(1024,pw) "Index Size",
totsum / power(1024,pw) "Total"
FROM (SELECT db,SUM(dat) datsum,SUM(ndx) ndxsum,SUM(dat+ndx) totsum
FROM (SELECT table_schema db,data_length dat,index_length ndx
FROM information_schema.tables WHERE engine IS NOT NULL
AND table_schema NOT IN ('information_schema','mysql')) AA
GROUP BY db WITH ROLLUP) A,(SELECT 1 pw) B;
Credimi, ho fatto queste domande più di 4 anni fa e le uso ancora oggi.
AGGIORNAMENTO 24-06-2013 15:53 EDT
Ho qualcosa di nuovo. Ho modificato le query in modo da non dover impostare il pw
parametro per diverse unità di visualizzazione. Ogni unità di visualizzazione viene calcolata per te.
Segnala per motore di archiviazione
SELECT
IFNULL(ENGINE,'Total') "Storage Engine",
LPAD(CONCAT(FORMAT(DAT/POWER(1024,pw1),2),' ',
SUBSTR(units,pw1*2+1,2)),17,' ') "Data Size",
LPAD(CONCAT(FORMAT(NDX/POWER(1024,pw2),2),' ',
SUBSTR(units,pw2*2+1,2)),17,' ') "Index Size",
LPAD(CONCAT(FORMAT(TBL/POWER(1024,pw3),2),' ',
SUBSTR(units,pw3*2+1,2)),17,' ') "Total Size"
FROM
(
SELECT ENGINE,DAT,NDX,TBL,
IF(px>4,4,px) pw1,IF(py>4,4,py) pw2,IF(pz>4,4,pz) pw3
FROM
(SELECT *,
FLOOR(LOG(IF(DAT=0,1,DAT))/LOG(1024)) px,
FLOOR(LOG(IF(NDX=0,1,NDX))/LOG(1024)) py,
FLOOR(LOG(IF(TBL=0,1,TBL))/LOG(1024)) pz
FROM
(SELECT
ENGINE,
SUM(data_length) DAT,
SUM(index_length) NDX,
SUM(data_length+index_length) TBL
FROM
(
SELECT engine,data_length,index_length FROM
information_schema.tables WHERE table_schema NOT IN
('information_schema','performance_schema','mysql')
AND ENGINE IS NOT NULL
) AAA GROUP BY ENGINE WITH ROLLUP
) AAA ) AA) A,(SELECT ' BKBMBGBTB' units) B;
Report per database
SELECT
IFNULL(DB,'Total') "Database",
LPAD(CONCAT(FORMAT(DAT/POWER(1024,pw1),2),' ',
SUBSTR(units,pw1*2+1,2)),17,' ') "Data Size",
LPAD(CONCAT(FORMAT(NDX/POWER(1024,pw2),2),' ',
SUBSTR(units,pw2*2+1,2)),17,' ') "Index Size",
LPAD(CONCAT(FORMAT(TBL/POWER(1024,pw3),2),' ',
SUBSTR(units,pw3*2+1,2)),17,' ') "Total Size"
FROM
(
SELECT DB,DAT,NDX,TBL,
IF(px>4,4,px) pw1,IF(py>4,4,py) pw2,IF(pz>4,4,pz) pw3
FROM
(SELECT *,
FLOOR(LOG(IF(DAT=0,1,DAT))/LOG(1024)) px,
FLOOR(LOG(IF(NDX=0,1,NDX))/LOG(1024)) py,
FLOOR(LOG(IF(TBL=0,1,TBL))/LOG(1024)) pz
FROM
(SELECT
DB,
SUM(data_length) DAT,
SUM(index_length) NDX,
SUM(data_length+index_length) TBL
FROM
(
SELECT table_schema DB,data_length,index_length FROM
information_schema.tables WHERE table_schema NOT IN
('information_schema','performance_schema','mysql')
AND ENGINE IS NOT NULL
) AAA GROUP BY DB WITH ROLLUP
) AAA) AA) A,(SELECT ' BKBMBGBTB' units) B;
Report per database/motore di archiviazione
SELECT
IF(ISNULL(DB)+ISNULL(ENGINE)=2,'Database Total',
CONCAT(DB,' ',IFNULL(ENGINE,'Total'))) "Reported Statistic",
LPAD(CONCAT(FORMAT(DAT/POWER(1024,pw1),2),' ',
SUBSTR(units,pw1*2+1,2)),17,' ') "Data Size",
LPAD(CONCAT(FORMAT(NDX/POWER(1024,pw2),2),' ',
SUBSTR(units,pw2*2+1,2)),17,' ') "Index Size",
LPAD(CONCAT(FORMAT(TBL/POWER(1024,pw3),2),' ',
SUBSTR(units,pw3*2+1,2)),17,' ') "Total Size"
FROM
(
SELECT DB,ENGINE,DAT,NDX,TBL,
IF(px>4,4,px) pw1,IF(py>4,4,py) pw2,IF(pz>4,4,pz) pw3
FROM
(SELECT *,
FLOOR(LOG(IF(DAT=0,1,DAT))/LOG(1024)) px,
FLOOR(LOG(IF(NDX=0,1,NDX))/LOG(1024)) py,
FLOOR(LOG(IF(TBL=0,1,TBL))/LOG(1024)) pz
FROM
(SELECT
DB,ENGINE,
SUM(data_length) DAT,
SUM(index_length) NDX,
SUM(data_length+index_length) TBL
FROM
(
SELECT table_schema DB,ENGINE,data_length,index_length FROM
information_schema.tables WHERE table_schema NOT IN
('information_schema','performance_schema','mysql')
AND ENGINE IS NOT NULL
) AAA GROUP BY DB,ENGINE WITH ROLLUP
) AAA) AA) A,(SELECT ' BKBMBGBTB' units) B;