ij> -- Test various functions create table alltypes( id int not null primary key, smallIntCol smallint, intCol int, bigIntCol bigint, floatCol float, float1Col float(1), float26Col float(26), realCol real, doubleCol double, decimalCol decimal, decimal10Col decimal(10), decimal11Col decimal(11), numeric10d2Col numeric(10,2), charCol char, char32Col char(32), charForBitCol char(16) for bit data, varcharCol varchar(64), varcharForBitCol varchar(64) for bit data, longVarcharCol long varchar, blobCol blob(10k), clobCol clob(10k), dateCol date, timeCol time, timestampCol timestamp); 0 rows inserted/updated/deleted ij> insert into allTypes(id) values(1),(2); 2 rows inserted/updated/deleted ij> update allTypes set smallIntCol = 2 where id = 1; 1 row inserted/updated/deleted ij> update allTypes set intCol = 2 where id = 1; 1 row inserted/updated/deleted ij> update allTypes set bigIntCol = 3 where id = 1; 1 row inserted/updated/deleted ij> update allTypes set floatCol = 4.1 where id = 1; 1 row inserted/updated/deleted ij> update allTypes set float1Col = 5 where id = 1; 1 row inserted/updated/deleted ij> update allTypes set float26Col = 6.1234567890123456 where id = 1; 1 row inserted/updated/deleted ij> update allTypes set realCol = 7.2 where id = 1; 1 row inserted/updated/deleted ij> update allTypes set doubleCol = 8.2 where id = 1; 1 row inserted/updated/deleted ij> update allTypes set decimalCol = 9 where id = 1; 1 row inserted/updated/deleted ij> update allTypes set decimal10Col = 1234 where id = 1; 1 row inserted/updated/deleted ij> update allTypes set decimal11Col = 1234 where id = 1; 1 row inserted/updated/deleted ij> update allTypes set numeric10d2Col = 11.12 where id = 1; 1 row inserted/updated/deleted ij> update allTypes set charCol = 'a' where id = 1; 1 row inserted/updated/deleted ij> update allTypes set char32Col = 'abc' where id = 1; 1 row inserted/updated/deleted ij> update allTypes set charForBitCol = X'ABCD' where id = 1; 1 row inserted/updated/deleted ij> update allTypes set varcharCol = 'abcde' where id = 1; 1 row inserted/updated/deleted ij> update allTypes set varcharForBitCol = X'ABCDEF' where id = 1; 1 row inserted/updated/deleted ij> update allTypes set longVarcharCol = 'abcdefg' where id = 1; 1 row inserted/updated/deleted ij> update allTypes set blobCol = cast( X'0031' as blob(10k)) where id = 1; 1 row inserted/updated/deleted ij> update allTypes set clobCol = 'clob data' where id = 1; 1 row inserted/updated/deleted ij> update allTypes set dateCol = date( '2004-3-13') where id = 1; 1 row inserted/updated/deleted ij> update allTypes set timeCol = time( '16:07:21') where id = 1; 1 row inserted/updated/deleted ij> update allTypes set timestampCol = timestamp( '2004-3-14 17:08:22.123456') where id = 1; 1 row inserted/updated/deleted ij> select id, length(smallIntCol) from allTypes order by id; ID |2 ----------------------- 1 |2 2 |NULL ij> select id, length(intCol) from allTypes order by id; ID |2 ----------------------- 1 |4 2 |NULL ij> select id, length(bigIntCol) from allTypes order by id; ID |2 ----------------------- 1 |8 2 |NULL ij> select id, length(floatCol) from allTypes order by id; ID |2 ----------------------- 1 |8 2 |NULL ij> select id, length(float1Col) from allTypes order by id; ID |2 ----------------------- 1 |4 2 |NULL ij> select id, length(float26Col) from allTypes order by id; ID |2 ----------------------- 1 |8 2 |NULL ij> select id, length(realCol) from allTypes order by id; ID |2 ----------------------- 1 |4 2 |NULL ij> select id, length(doubleCol) from allTypes order by id; ID |2 ----------------------- 1 |8 2 |NULL ij> select id, length(decimalCol) from allTypes order by id; ID |2 ----------------------- 1 |3 2 |NULL ij> select id, length(decimal10Col) from allTypes order by id; ID |2 ----------------------- 1 |6 2 |NULL ij> select id, length(decimal11Col) from allTypes order by id; ID |2 ----------------------- 1 |6 2 |NULL ij> select id, length(numeric10d2Col) from allTypes order by id; ID |2 ----------------------- 1 |6 2 |NULL ij> select id, length(charCol) from allTypes order by id; ID |2 ----------------------- 1 |1 2 |NULL ij> select id, length(char32Col) from allTypes order by id; ID |2 ----------------------- 1 |32 2 |NULL ij> select id, length(charForBitCol) from allTypes order by id; ID |2 ----------------------- 1 |16 2 |NULL ij> select id, length(varcharCol) from allTypes order by id; ID |2 ----------------------- 1 |5 2 |NULL ij> select id, length(varcharForBitCol) from allTypes order by id; ID |2 ----------------------- 1 |3 2 |NULL ij> select id, length(longVarcharCol) from allTypes order by id; ID |2 ----------------------- 1 |7 2 |NULL ij> select id, length(blobCol) from allTypes order by id; ID |2 ----------------------- 1 |2 2 |NULL ij> select id, length(clobCol) from allTypes order by id; ID |2 ----------------------- 1 |9 2 |NULL ij> select id, length(dateCol) from allTypes order by id; ID |2 ----------------------- 1 |4 2 |NULL ij> select id, length(timeCol) from allTypes order by id; ID |2 ----------------------- 1 |3 2 |NULL ij> select id, length(timestampCol) from allTypes order by id; ID |2 ----------------------- 1 |10 2 |NULL ij> -- try length of constants values( length( 1), length( 720176), length( 12345678901)); 1 |2 |3 ----------------------------------- 4 |4 |8 ij> values( length( 2.2E-1)); 1 ----------- 8 ij> values( length( 1.), length( 12.3), length( 123.4), length( 123.45)); 1 |2 |3 |4 ----------------------------------------------- 1 |2 |3 |3 ij> values( length( '1'), length( '12')); 1 |2 ----------------------- 1 |2 ij> values( length( X'00'), length( X'FF'), length( X'FFFF')); 1 |2 |3 ----------------------------------- 1 |1 |2 ij> values( length( date('0001-1-1')), length( time('0:00:00')), length( timestamp( '0001-1-1 0:00:00'))); 1 |2 |3 ----------------------------------- 4 |3 |10 ij> -- try a length in the where clause select id from allTypes where length(smallIntCol) > 5 order by id; ID ----------- ij> select id from allTypes where length(intCol) > 5 order by id; ID ----------- ij> select id from allTypes where length(bigIntCol) > 5 order by id; ID ----------- 1 ij> select id from allTypes where length(floatCol) > 5 order by id; ID ----------- 1 ij> select id from allTypes where length(float1Col) > 5 order by id; ID ----------- ij> select id from allTypes where length(float26Col) > 5 order by id; ID ----------- 1 ij> select id from allTypes where length(realCol) > 5 order by id; ID ----------- ij> select id from allTypes where length(doubleCol) > 5 order by id; ID ----------- 1 ij> select id from allTypes where length(decimalCol) > 5 order by id; ID ----------- ij> select id from allTypes where length(decimal10Col) > 5 order by id; ID ----------- 1 ij> select id from allTypes where length(decimal11Col) > 5 order by id; ID ----------- 1 ij> select id from allTypes where length(numeric10d2Col) > 5 order by id; ID ----------- 1 ij> select id from allTypes where length(charCol) > 5 order by id; ID ----------- ij> select id from allTypes where length(char32Col) > 5 order by id; ID ----------- 1 ij> select id from allTypes where length(charForBitCol) > 5 order by id; ID ----------- 1 ij> select id from allTypes where length(varcharCol) > 5 order by id; ID ----------- ij> select id from allTypes where length(varcharForBitCol) > 5 order by id; ID ----------- ij> select id from allTypes where length(longVarcharCol) > 5 order by id; ID ----------- 1 ij> select id from allTypes where length(blobCol) > 5 order by id; ID ----------- ij> select id from allTypes where length(clobCol) > 5 order by id; ID ----------- 1 ij> select id from allTypes where length(dateCol) > 5 order by id; ID ----------- ij> select id from allTypes where length(timeCol) > 5 order by id; ID ----------- ij> select id from allTypes where length(timestampCol) > 5 order by id; ID ----------- 1 ij> -- try an expression select id, length( charCol || 'abc') from allTypes order by id; ID |2 ----------------------- 1 |4 2 |NULL ij> -- bug 5761 & 5627 -- JDBC escape length function has the following behavior -- LENGTH (RTRIM (xxxx)) values {FN LENGTH('xxxx ')}; 1 ----------- 4 ij> values {FN LENGTH(' xxxx ')}; 1 ----------- 5 ij> values {FN LENGTH(' xxxx ')}; 1 ----------- 6 ij> values {FN LENGTH(' xxxx ')}; 1 ----------- 7 ij> CREATE FUNCTION SV_RNNI(P1 INT) RETURNS VARCHAR(10) RETURNS NULL ON NULL INPUT EXTERNAL NAME 'java.lang.String.valueOf' LANGUAGE JAVA PARAMETER STYLE JAVA; 0 rows inserted/updated/deleted ij> CREATE FUNCTION SV_CNI(P1 INT) RETURNS VARCHAR(10) CALLED ON NULL INPUT EXTERNAL NAME 'java.lang.String.valueOf' LANGUAGE JAVA PARAMETER STYLE JAVA; 0 rows inserted/updated/deleted ij> CREATE FUNCTION SV_DEF(P1 INT) RETURNS VARCHAR(10) EXTERNAL NAME 'java.lang.String.valueOf' LANGUAGE JAVA PARAMETER STYLE JAVA; 0 rows inserted/updated/deleted ij> CREATE FUNCTION MAX_RNNI(P1 INT, P2 INT) RETURNS INT RETURNS NULL ON NULL INPUT EXTERNAL NAME 'java.lang.Math.max' LANGUAGE JAVA PARAMETER STYLE JAVA; 0 rows inserted/updated/deleted ij> CREATE FUNCTION MAX_CNI(P1 INT, P2 INT) RETURNS INT CALLED ON NULL INPUT EXTERNAL NAME 'java.lang.Math.max' LANGUAGE JAVA PARAMETER STYLE JAVA; 0 rows inserted/updated/deleted ij> CREATE FUNCTION MAX_DEF(P1 INT, P2 INT) RETURNS INT EXTERNAL NAME 'java.lang.Math.max' LANGUAGE JAVA PARAMETER STYLE JAVA; 0 rows inserted/updated/deleted ij> VALUES SV_RNNI(3); 1 -------------------------------------------------------------------------------------------------------------------------------- 3 ij> VALUES SV_CNI(4); 1 -------------------------------------------------------------------------------------------------------------------------------- 4 ij> VALUES SV_DEF(5); 1 -------------------------------------------------------------------------------------------------------------------------------- 5 ij> create table SV_TAB(I INT); 0 rows inserted/updated/deleted ij> insert into SV_TAB values(null); 1 row inserted/updated/deleted ij> insert into SV_TAB values(7); 1 row inserted/updated/deleted ij> select SV_RNNI(I) from SV_TAB where I = 7; 1 -------------------------------------------------------------------------------------------------------------------------------- 7 ij> select SV_CNI(I) from SV_TAB where I = 7; 1 -------------------------------------------------------------------------------------------------------------------------------- 7 ij> select SV_DEF(I) from SV_TAB where I = 7; 1 -------------------------------------------------------------------------------------------------------------------------------- 7 ij> select SV_RNNI(I) from SV_TAB where I IS NULL; 1 -------------------------------------------------------------------------------------------------------------------------------- NULL ij> select SV_CNI(I) from SV_TAB where I IS NULL; 1 -------------------------------------------------------------------------------------------------------------------------------- ERROR 39004: A NULL value cannot be passed to a method which takes a parameter of primitive type 'int'. ij> select SV_DEF(I) from SV_TAB where I IS NULL; 1 -------------------------------------------------------------------------------------------------------------------------------- ERROR 39004: A NULL value cannot be passed to a method which takes a parameter of primitive type 'int'. ij> VALUES MAX_RNNI(67, 12); 1 ----------- 67 ij> VALUES MAX_RNNI(-3, -98); 1 ----------- -3 ij> VALUES MAX_CNI(5, 3); 1 ----------- 5 ij> VALUES MAX_DEF(99, -45); 1 ----------- 99 ij> select MAX_RNNI(5, I) from SV_TAB where I = 7; 1 ----------- 7 ij> select MAX_CNI(6, I) from SV_TAB where I = 7; 1 ----------- 7 ij> select MAX_DEF(2, I) from SV_TAB where I = 7; 1 ----------- 7 ij> select MAX_RNNI(I, 34) from SV_TAB where I = 7; 1 ----------- 34 ij> select MAX_CNI(I, 24) from SV_TAB where I = 7; 1 ----------- 24 ij> select MAX_DEF(I, 14) from SV_TAB where I = 7; 1 ----------- 14 ij> select MAX_RNNI(5, I) from SV_TAB where I IS NULL; 1 ----------- NULL ij> select MAX_CNI(6, I) from SV_TAB where I IS NULL; 1 ----------- ERROR 39004: A NULL value cannot be passed to a method which takes a parameter of primitive type 'int'. ij> select MAX_DEF(2, I) from SV_TAB where I IS NULL; 1 ----------- ERROR 39004: A NULL value cannot be passed to a method which takes a parameter of primitive type 'int'. ij> select MAX_RNNI(I, 34) from SV_TAB where I IS NULL; 1 ----------- NULL ij> select MAX_CNI(I, 24) from SV_TAB where I IS NULL; 1 ----------- ERROR 39004: A NULL value cannot be passed to a method which takes a parameter of primitive type 'int'. ij> select MAX_DEF(I, 14) from SV_TAB where I IS NULL; 1 ----------- ERROR 39004: A NULL value cannot be passed to a method which takes a parameter of primitive type 'int'. ij> CREATE FUNCTION COUNT_ROWS(P1 VARCHAR(128), P2 VARCHAR(128)) RETURNS INT READS SQL DATA EXTERNAL NAME 'org.apache.derbyTesting.functionTests.util.ProcedureTest.countRows' LANGUAGE JAVA PARAMETER STYLE JAVA; 0 rows inserted/updated/deleted ij> CREATE FUNCTION FN_ABS(P1 INT) RETURNS INT NO SQL RETURNS NULL ON NULL INPUT EXTERNAL NAME 'java.lang.Math.abs' LANGUAGE JAVA PARAMETER STYLE JAVA; 0 rows inserted/updated/deleted ij> select FN_ABS(i) FROM SV_TAB; 1 ----------- NULL 7 ij> select COUNT_ROWS(CURRENT SCHEMA, 'SV_TAB') from SV_TAB; 1 ----------- 2 2 ij> select FN_ABS(i), COUNT_ROWS(CURRENT SCHEMA, 'SV_TAB') from SV_TAB; 1 |2 ----------------------- NULL |2 7 |2 ij> DROP FUNCTION SV_RNNI; 0 rows inserted/updated/deleted ij> DROP FUNCTION SV_CNI; 0 rows inserted/updated/deleted ij> DROP FUNCTION SV_DEF; 0 rows inserted/updated/deleted ij> DROP FUNCTION MAX_RNNI; 0 rows inserted/updated/deleted ij> DROP FUNCTION MAX_CNI; 0 rows inserted/updated/deleted ij> DROP FUNCTION MAX_DEF; 0 rows inserted/updated/deleted ij> DROP FUNCTION FN_ABS; 0 rows inserted/updated/deleted ij> DROP FUNCTION COUNT_ROWS; 0 rows inserted/updated/deleted ij> DROP TABLE SV_TAB; 0 rows inserted/updated/deleted ij> -- check MODIFIES SQL DATA not allowed with FUNCTION CREATE FUNCTION COUNT_ROWS(P1 VARCHAR(128), P2 VARCHAR(128)) RETURNS INT MODIFIES SQL DATA EXTERNAL NAME 'org.apache.derbyTesting.functionTests.util.ProcedureTest.countRows' LANGUAGE JAVA PARAMETER STYLE JAVA; ERROR 42X01: Syntax error: MODIFIES SQL DATA. ij>