varchar2

I'm searching for the best (and fastest) way to compare VARCHAR2(50 BYTE) with CHAR(12 BYTE) . There are two databases, first contains a table1 with CHAR column (underline means space characters to fill CHAR length) ID VALUE 1 123-45___ 2 123-456__ 3 123-457__ second database (table2) contains VARCHAR2 without white space. ID VALUE 4 123-45 5 123-456 6 123-457 So, I want something like this SELECT table1.ID FROM table1 WHERE table1.VALUE = '123-45' As the table1.value column is indexed, you don't want to manipulate that for the comparison as that would prevent the index being used. So you'll

Table: customers ID NAME DATATYPE NUMBER VARCHAR2(100) CLOB I want to change the DATA column from CLOB to `VARCHAR2(1000) I have try ALTER TABLE customers MODIFY DATA VARCHAR2 (1000) also ALTER TABLE customers MODIFY (DATA VARCHAR2 (1000)) also alter table customers modify (data VARCHAR2(4000)) those normally works if the datatype is not a clob but I am getting a ORA-22859 because I am using oracle toad/apex. Rahul Tripathi You may try this: Add a new column as varchar2 alter table my_table add (new_column varchar2(1000)); UPDATE CLOB name to varchar2 column; update my_table set new_column

We are migrating some data from sql server to oracle. For columns defined as NVARCHAR in SQL server we started creating NVARCHAR columns in Oracle thinking them to be similar..But it looks like they are not. I have read couple of posts on stackoverflow and want to confirm my findings. Oracle VARCHAR2 already supports unicode if the database character set is say AL32UTF8 (which is true for our case). SQLServer VARCHAR does not support unicode. SQLServer explicitly requires columns to be in NCHAR/NVARCHAR type to store data in unicode (specifically in the 2 byte UCS-2 format).. Hence would it be

I am using oracle verion 10. There is stored procedure in PL/SQL using varchar2 variable. The code is constantly appending the varchar2 variable. When the varchar2 variable size exceeds 32767, it cannot append any more value. Now I want to change the data type to long or clob(in order to accomodate more characters), it does not work. How to modify the code here to have the same appending functionality with clob or long? sample appending x:= x || 'mydata'; The long datatype is deprecated; if you can you should seriously consider migrating your long column to a clob . If you were working with a

I have a stored procedure in Oracle Database 10g where my input is a varchar2 but I'm having issues getting it to run when the input string is long (not sure of exact length maybe > 8000). My thought is the 'intext varchar2' (as below) is by default is too small. In other cases where I need a longer string I might define a varchar2 as "intext2 VARCHAR2(32767);" I tried to define the size similarly in the code below but my syntax is incorrect. create or replace PROCEDURE TESTPROC ( intext IN VARCHAR2 ) AS .... What is the (default) size of the intext varchar2? Can that size be defined

I am on Oracle 10g. In a requirement I need to increase the size of a pl/sql VARCHAR2 variable. It is already at 4000 size. I have read that in PL/SQL, VARCHAR2 can be up to 32767 bytes. For SQL the limit is 4000 bytes Can I increase the size of this variable without worrying about the SQL limit? See the official documentation ( http://docs.oracle.com/cd/B19306_01/server.102/b14200/sql_elements001.htm#i54330 ) Variable-length character string having maximum length size bytes or characters. Maximum size is 4000 bytes or characters, and minimum is 1 byte or 1 character. You must specify size for