Teradata 常用查询

查询数据库空间大小

Query table space: SELECT SUM(currentperm)/1024/1024/1024 AS GB FROM dbc.tablesize WHERE tablename = 'table1' AND databasename = 'db1' Query database size: SELECT SUM(currentperm)/1024/1024/1024 AS SpaceUsed, SUM(maxperm)/1024/1024/1024 AS MaxSpace FROM dbc.diskspace WHERE databasename = 'db1' List all tables space in a database: SELECT tablename, SUM(currentperm)/1024/1024/1024 AS GB FROM dbc.tablesize WHERE databasename = 'db1' GROUP BY 1 ORDER BY 2

 

Query table space: SELECT SUM(currentperm)/1024/1024/1024 AS GB FROM dbc.tablesize WHERE tablename = 'table1' AND databasename = 'db1' Query database size: SELECT SUM(currentperm)/1024/1024/1024 AS SpaceUsed, SUM(maxperm)/1024/1024/1024 AS MaxSpace FROM dbc.diskspace WHERE databasename = 'db1' List all tables space in a database: SELECT tablename, SUM(currentperm)/1024/1024/1024 AS GB FROM dbc.tablesize WHERE databasename = 'db1' GROUP BY 1 ORDER BY 2

 

Query table space: SELECT SUM(currentperm)/1024/1024/1024 AS GB FROM dbc.tablesize WHERE tablename = 'table1' AND databasename = 'db1' Query database size: SELECT SUM(currentperm)/1024/1024/1024 AS SpaceUsed, SUM(maxperm)/1024/1024/1024 AS MaxSpace FROM dbc.diskspace WHERE databasename = 'db1' List all tables space in a database: SELECT tablename, SUM(currentperm)/1024/1024/1024 AS GB FROM dbc.tablesize WHERE databasename = 'db1' GROUP BY 1 ORDER BY 2

 

Query table space: SELECT SUM(currentperm)/1024/1024/1024 AS GB FROM dbc.tablesize WHERE tablename = 'table1' AND databasename = 'db1' Query database size: SELECT SUM(currentperm)/1024/1024/1024 AS SpaceUsed, SUM(maxperm)/1024/1024/1024 AS MaxSpace FROM dbc.diskspace WHERE databasename = 'db1' List all tables space in a database: SELECT tablename, SUM(currentperm)/1024/1024/1024 AS GB FROM dbc.tablesize WHERE databasename = 'db1' GROUP BY 1 ORDER BY 2

 

Query table space: SELECT SUM(currentperm)/1024/1024/1024 AS GB FROM dbc.tablesize WHERE tablename = 'table1' AND databasename = 'db1' Query database size: SELECT SUM(currentperm)/1024/1024/1024 AS SpaceUsed, SUM(maxperm)/1024/1024/1024 AS MaxSpace FROM dbc.diskspace WHERE databasename = 'db1' List all tables space in a database: SELECT tablename, SUM(currentperm)/1024/1024/1024 AS GB FROM dbc.tablesize WHERE databasename = 'db1' GROUP BY 1 ORDER BY 2

 

Query table space: SELECT SUM(currentperm)/1024/1024/1024 AS GB FROM dbc.tablesize WHERE tablename = 'table1' AND databasename = 'db1' Query database size: SELECT SUM(currentperm)/1024/1024/1024 AS SpaceUsed, SUM(maxperm)/1024/1024/1024 AS MaxSpace FROM dbc.diskspace WHERE databasename = 'db1' List all tables space in a database: SELECT tablename, SUM(currentperm)/1024/1024/1024 AS GB FROM dbc.tablesize WHERE databasename = 'db1' GROUP BY 1 ORDER BY 2

 

SELECT databasename ,tablename , SUM(columnlength) + 22 AS RowSize -- -- Assuming a 22 Byte Row Overhead, not sure if that has changed in TD12 -- FROM dbc.COLUMNS WHERE databasename = 'GDW_TABLES' AND tablename = 'DW_LSTG_ITEM_COLD' GROUP BY 1,2 ;