DB2 Essentials

Listing the details of a table.
SELECT * FROM SYSIBM.SYSCOLUMNS WHERE TBNAME = ‘MYTABLE’ AND TBCREATOR = ‘MYSCHEMA’ ORDER BY COLNO

where TBNAME is table name and TBCREATOR is schema name

Listing column name, column type, size, tablename of column of a table
SELECT name, coltype, length, tbname FROM SYSIBM.SYSCOLUMNS WHERE TBNAME = ‘MYTABLE’ AND TBCREATOR = ‘MYSCHEMA’ ORDER BY name

Selecting current date and current time
SELECT CURRENT DATE, CURRENT TIME FROM MYSCHEMA.MYTABLE

Using current date, current time in insert query
INSERT INTO MYSCHEMA.MYTABLE(MYDATE, MYTIME) VALUES (CURRENT TIME, CURRENT DATE)