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14 sty 2022 · You can use any of the option below. Using NVL () SELECT ID ,NVL (NAME, 0) FROM TEST; Using ANSI standard coalesce () SELECT ID ,coalesce (NAME, '0') FROM TEST; Using CASE. SELECT ID ,CASE WHEN NAME IS NOT NULL THEN NAME ELSE '0' END FROM TEST; DEMO. edited Nov 14, 2017 at 8:56.
28 wrz 2015 · To replicate nvl(A,B) but for 0 instead of null, you can do: WHEN A != 0 THEN A ELSE B END or Craig's more compact (but harder for others to read): NVL(NULLIF(A,0),B) I think that the following would also work: DECODE(A,0,B,A)
The Oracle NVL() function allows you to replace null with a more meaningful alternative in the results of a query. The following shows the syntax of the NVL() function: NVL(e1, e2) Code language: SQL (Structured Query Language) ( sql )
DROP TABLE null_test_tab; CREATE TABLE null_test_tab ( id NUMBER, col1 VARCHAR2(10), col2 VARCHAR2(10), col3 VARCHAR2(10), col4 VARCHAR2(10) ); INSERT INTO null_test_tab values (1, 'ONE', 'TWO', 'THREE', 'FOUR'); INSERT INTO null_test_tab values (2, NULL, 'TWO', 'THREE', 'FOUR'); INSERT INTO null_test_tab values (3, NULL, NULL, 'THREE', 'FOUR ...
23 lut 2012 · ASCII code 0 represents the "NUL" character, and can be entered using oracle's CHR () function [ chr (0) ]. The entered value can be tested with ascii () function (i.e. select * from tab where ascii (col) = 0). The "empty string" is not showing to have an ascii value of '0'. Only in C would '\0' be the emtpy string.
10 paź 2012 · I have one requirement, how to replace 0 in place of null values? I already using data format as UPTO 2 for this column and also caluclated Items are not working (it is showing empty cells) if any column contains null values. So please help on this. I tried 2 ways using ifnull and case statement, but it is not working.
15 mar 2006 · In the first case, where storageflag is null, the optimizer said "we will get about 1 record. When getting one record from this table of 1,620,050 records - using the index makes sense". In the second case, where storageflag = 0, the optimizer said "due to the fact that we'll get lots of records (4642 of them).
