Oracle PL/SQL/Regular Expressions/Digit
Содержание
Any match for a "non-zero to nine" returns all rows because all rows have a non-digit
<source lang="sql">
SQL> create table TestTable(
2 ID VARCHAR2(4 BYTE) NOT NULL, 3 Description VARCHAR2(30 BYTE) 4 ) 5 /
Table created. SQL> SQL> SQL> insert into TestTable (ID, Description) values("1","1234 5th Street"); 1 row created. SQL> insert into TestTable (ID, Description) values("2","1 Culloden Street"); 1 row created. SQL> insert into TestTable (ID, Description) values("3","1234 Road"); 1 row created. SQL> insert into TestTable (ID, Description) values("4","33 Thrid Road"); 1 row created. SQL> insert into TestTable (ID, Description) values("5","One than another"); 1 row created. SQL> insert into TestTable (ID, Description) values("6","2003 Movie"); 1 row created. SQL> insert into TestTable (ID, Description) values("7","Start With Letters"); 1 row created. SQL> SQL> select * from TestTable; ID DESCRIPTION
------------------------------
1 1234 5th Street 2 1 Culloden Street 3 1234 Road 4 33 Thrid Road 5 One than another 6 2003 Movie 7 Start With Letters 7 rows selected. SQL> SQL> SQL> SQL> -- Any match for a "non-zero to nine" returns all rows because all rows have a non-digit SQL> SQL> SELECT description
2 FROM testTable 3 WHERE REGEXP_LIKE(description,"[^0-9]");
DESCRIPTION
1234 5th Street 1 Culloden Street 1234 Road 33 Thrid Road One than another 2003 Movie Start With Letters 7 rows selected. SQL> SQL> drop table TestTable; Table dropped. SQL> SQL>
</source>
NOT REGEXP_LIKE(description,"digit"): Matching for a non-digit
<source lang="sql">
SQL> create table TestTable(
2 ID VARCHAR2(4 BYTE) NOT NULL, 3 Description VARCHAR2(30 BYTE) 4 ) 5 /
Table created. SQL> SQL> SQL> insert into TestTable (ID, Description) values("1","1234 5th Street"); 1 row created. SQL> insert into TestTable (ID, Description) values("2","1 Culloden Street"); 1 row created. SQL> insert into TestTable (ID, Description) values("3","1234 Road"); 1 row created. SQL> insert into TestTable (ID, Description) values("4","33 Thrid Road"); 1 row created. SQL> insert into TestTable (ID, Description) values("5","One than another"); 1 row created. SQL> insert into TestTable (ID, Description) values("6","2003 Movie"); 1 row created. SQL> insert into TestTable (ID, Description) values("7","Start With Letters"); 1 row created. SQL> SQL> select * from TestTable; ID DESCRIPTION
------------------------------
1 1234 5th Street 2 1 Culloden Street 3 1234 Road 4 33 Thrid Road 5 One than another 6 2003 Movie 7 Start With Letters 7 rows selected. SQL> SQL> SQL> SQL> -- NOT REGEXP_LIKE(description,"digit"): Matching for a non-digit SQL> SQL> SELECT description
2 FROM testTable 3 WHERE NOT REGEXP_LIKE(description,"digit");
DESCRIPTION
1234 5th Street 1 Culloden Street 1234 Road 33 Thrid Road One than another 2003 Movie Start With Letters 7 rows selected. SQL> SQL> SQL> SQL> SQL> drop table TestTable; Table dropped. SQL> SQL> SQL>
</source>
REGEXP_INSTR(description,"digit:")
<source lang="sql">
SQL> create table TestTable(
2 ID VARCHAR2(4 BYTE) NOT NULL, 3 Description VARCHAR2(30 BYTE) 4 ) 5 /
Table created. SQL> SQL> SQL> insert into TestTable (ID, Description) values("1","1234 5th Street"); 1 row created. SQL> insert into TestTable (ID, Description) values("2","1 Culloden Street"); 1 row created. SQL> insert into TestTable (ID, Description) values("3","1234 Road"); 1 row created. SQL> insert into TestTable (ID, Description) values("4","33 Thrid Road"); 1 row created. SQL> insert into TestTable (ID, Description) values("5","One than another"); 1 row created. SQL> insert into TestTable (ID, Description) values("6","2003 Movie"); 1 row created. SQL> insert into TestTable (ID, Description) values("7","Start With Letters"); 1 row created. SQL> SQL> select * from TestTable; ID DESCRIPTION
------------------------------
1 1234 5th Street 2 1 Culloden Street 3 1234 Road 4 33 Thrid Road 5 One than another 6 2003 Movie 7 Start With Letters 7 rows selected. SQL> SQL> SQL> SQL> SQL> SELECT description
2 FROM testTable 3 WHERE REGEXP_INSTR(description,"digit:") = 0;
DESCRIPTION
One than another Start With Letters SQL> SQL> drop table TestTable; Table dropped. SQL> SQL>
</source>
Suppose we want to find any row where there are digits or lack of digits
<source lang="sql">
SQL> create table TestTable(
2 ID VARCHAR2(4 BYTE) NOT NULL, 3 Description VARCHAR2(30 BYTE) 4 ) 5 /
Table created. SQL> SQL> SQL> insert into TestTable (ID, Description) values("1","1234 5th Street"); 1 row created. SQL> insert into TestTable (ID, Description) values("2","1 Culloden Street"); 1 row created. SQL> insert into TestTable (ID, Description) values("3","1234 Road"); 1 row created. SQL> insert into TestTable (ID, Description) values("4","33 Thrid Road"); 1 row created. SQL> insert into TestTable (ID, Description) values("5","One than another"); 1 row created. SQL> insert into TestTable (ID, Description) values("6","2003 Movie"); 1 row created. SQL> insert into TestTable (ID, Description) values("7","Start With Letters"); 1 row created. SQL> SQL> select * from TestTable; ID DESCRIPTION
------------------------------
1 1234 5th Street 2 1 Culloden Street 3 1234 Road 4 33 Thrid Road 5 One than another 6 2003 Movie 7 Start With Letters 7 rows selected. SQL> SQL> SQL> SQL> SQL> -- Bracketed Special Classes SQL> SQL> -- Suppose we want to find any row where there are digits or lack of digits. SQL> SQL> -- The bracketed expression digit matches numbers. SQL> SQL> SQL> SELECT description
2 FROM testTable 3 WHERE REGEXP_INSTR(description,"^digit:") = 1;
DESCRIPTION
1234 5th Street 1 Culloden Street 1234 Road 33 Thrid Road 2003 Movie SQL> SQL> SQL> SQL> SQL> SQL> drop table TestTable; Table dropped. SQL> SQL>
</source>
