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📁 derby database source code.good for you.
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ij> -- by default, holdability of ResultSet objects created using this Connection object is true. Following will set it to false for this connection.NoHoldForConnection;ij> create table a (a int);0 rows inserted/updated/deletedij> insert into a values (1);1 row inserted/updated/deletedij> select * from a;A          -----1          ij> drop table a;0 rows inserted/updated/deletedij> create table b (si smallint,i int, bi bigint, r real, f float, d double precision, n5_2 numeric(5,2), dec10_3 decimal(10,3), ch20 char(20),vc varchar(20), lvc long varchar, blobCol blob(1000),  clobCol clob(1000));0 rows inserted/updated/deletedij> insert into b values(2,3,4,5.3,5.3,5.3,31.13,123456.123, 'one','one','one',cast(X'01ABCD' as blob(1000)),'one');1 row inserted/updated/deletedij> insert into b values(-32768,-2147483648, -9223372036854775808 ,1.2E-37, 2.225E-307, +2.225E-307,-56.12, -123456.123,'one','one','one', cast(X'01ABCD' as blob(1000)),'one');1 row inserted/updated/deletedij> insert into b values(null,null,null,null,null,null,null,null,null,null,null,null,null);1 row inserted/updated/deletedij> insert into b values(32767,2147483647, 9223372036854775807 ,1.4 , 3.4028235E38 ,3.4028235E38  ,999.99, 9999999.999,'one','one','one',cast(X'01ABCD' as blob(1000)), 'one');1 row inserted/updated/deletedij> select * from b;SI |I |BI |R |F |D |N5_2 |DEC10_3 |CH20 |VC |LVC |BLOBCOL |CLOBCOL                                                                                                                         -----2 |3 |4 |5.3 |5.3 |5.3 |31.13 |123456.123 |one |one |one |01abcd |one                                                                                                                             -----32768 |-2147483648 |-9223372036854775808 |1.2E-37 |2.225E-307 |2.225E-307 |-56.12 |-123456.123 |one |one |one |01abcd |one                                                                                                                             NULL |NULL |NULL |NULL |NULL |NULL |NULL |NULL |NULL |NULL |NULL |NULL |NULL                                                                                                                            32767 |2147483647 |9223372036854775807 |1.4 |3.4028235E38 |3.4028235E38 |999.99 |9999999.999 |one |one |one |01abcd |one                                                                                                                             ij> drop table b;0 rows inserted/updated/deletedij> create table c (si smallint not null,i int not null , bi bigint not null, r real not null, f float not null, d double precision not null, n5_2 numeric(5,2) not null , dec10_3 decimal(10,3) not null, ch20 char(20) not null ,vc varchar(20) not null, lvc long varchar not null,  blobCol blob(1000) not null,  clobCol clob(1000) not null);0 rows inserted/updated/deletedij> insert into c values(2,3,4,5.3,5.3,5.3,31.13,123456.123, 'one','one','one', cast(X'01ABCD' as blob(1000)), 'one');1 row inserted/updated/deletedij> insert into c values(-32768,-2147483648, -9223372036854775808 ,1.2E-37, 2.225E-307, +2.225E-307,-56.12, -123456.123,'one','one','one', cast(X'01ABCD' as blob(1000)),'one');1 row inserted/updated/deletedij> select * from c;SI |I |BI |R |F |D |N5_2 |DEC10_3 |CH20 |VC |LVC |BLOBCOL |CLOBCOL                                                                                                                         -----2 |3 |4 |5.3 |5.3 |5.3 |31.13 |123456.123 |one |one |one |01abcd |one                                                                                                                             -----32768 |-2147483648 |-9223372036854775808 |1.2E-37 |2.225E-307 |2.225E-307 |-56.12 |-123456.123 |one |one |one |01abcd |one                                                                                                                             ij> values(10);1          -----10         ij> values('hello');1    -----helloij> values(1.2);1   -----1.2 ij> drop table c;0 rows inserted/updated/deletedij> -- bug 4430 aliasinfo nullability problemselect aliasinfo from sys.sysaliases where aliasinfo is null;ALIASINFO                                                                                                                       -----ij> -- test commit and rollbackautocommit off;ij> create table a(a int);0 rows inserted/updated/deletedij> insert into a values (1);1 row inserted/updated/deletedij> select * from a;A          -----1          ij> commit;ij> drop table a;0 rows inserted/updated/deletedij> rollback;ij> select * from a;A          -----1          ij> drop table a;0 rows inserted/updated/deletedij> commit;ij> autocommit on;ij> maximumdisplaywidth 5000;ij> --test 84 columns values(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,21, 22, 23, 24, 25, 26, 27, 28, 29, 30,31, 32, 33, 34, 35, 36, 37, 38, 39, 40,41, 42, 43, 44, 45, 46, 47, 48, 49, 50,51, 52, 53, 54, 55, 56, 57, 58, 59, 60,61, 62, 63, 64, 65, 66, 67, 68, 69, 70,71, 72, 73, 74, 75, 76, 77, 78, 79, 80,81, 82, 83, 84);1 |2 |3 |4 |5 |6 |7 |8 |9 |10 |11 |12 |13 |14 |15 |16 |17 |18 |19 |20 |21 |22 |23 |24 |25 |26 |27 |28 |29 |30 |31 |32 |33 |34 |35 |36 |37 |38 |39 |40 |41 |42 |43 |44 |45 |46 |47 |48 |49 |50 |51 |52 |53 |54 |55 |56 |57 |58 |59 |60 |61 |62 |63 |64 |65 |66 |67 |68 |69 |70 |71 |72 |73 |74 |75 |76 |77 |78 |79 |80 |81 |82 |83 |84         -----1 |2 |3 |4 |5 |6 |7 |8 |9 |10 |11 |12 |13 |14 |15 |16 |17 |18 |19 |20 |21 |22 |23 |24 |25 |26 |27 |28 |29 |30 |31 |32 |33 |34 |35 |36 |37 |38 |39 |40 |41 |42 |43 |44 |45 |46 |47 |48 |49 |50 |51 |52 |53 |54 |55 |56 |57 |58 |59 |60 |61 |62 |63 |64 |65 |66 |67 |68 |69 |70 |71 |72 |73 |74 |75 |76 |77 |78 |79 |80 |81 |82 |83 |84         ij> values(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,21, 22, 23, 24, 25, 26, 27, 28, 29, 30,31, 32, 33, 34, 35, 36, 37, 38, 39, 40,41, 42, 43, 44, 45, 46, 47, 48, 49, 50,51, 52, 53, 54, 55, 56, 57, 58, 59, 60,61, 62, 63, 64, 65, 66, 67, 68, 69, 70,71, 72, 73, 74, 75, 76, 77, 78, 79, 80,81, 82, 83, 84, 85, 86, 87, 88, 89, 90,91, 92, 93, 94, 95, 96, 97, 98, 99, 100);1 |2 |3 |4 |5 |6 |7 |8 |9 |10 |11 |12 |13 |14 |15 |16 |17 |18 |19 |20 |21 |22 |23 |24 |25 |26 |27 |28 |29 |30 |31 |32 |33 |34 |35 |36 |37 |38 |39 |40 |41 |42 |43 |44 |45 |46 |47 |48 |49 |50 |51 |52 |53 |54 |55 |56 |57 |58 |59 |60 |61 |62 |63 |64 |65 |66 |67 |68 |69 |70 |71 |72 |73 |74 |75 |76 |77 |78 |79 |80 |81 |82 |83 |84 |85 |86  -----1 |2 |3 |4 |5 |6 |7 |8 |9 |10 |11 |12 |13 |14 |15 |16 |17 |18 |19 |20 |21 |22 |23 |24 |25 |26 |27 |28 |29 |30 |31 |32 |33 |34 |35 |36 |37 |38 |39 |40 |41 |42 |43 |44 |45 |46 |47 |48 |49 |50 |51 |52 |53 |54 |55 |56 |57 |58 |59 |60 |61 |62 |63 |64 |65 |66 |67 |68 |69 |70 |71 |72 |73 |74 |75 |76 |77 |78 |79 |80 |81 |82 |83 |84 |85 |86 |87 |88 |89 |90 |91 |92 |93 |94 |95 |96 |97 |98 |99 |100        ij> -- test SQL Error with non-string arguments----- Make sure connection still ok (Bug 4657)create table a (a int);0 rows inserted/updated/deletedij> insert into a values(2342323423) ;ERROR 22003: The resulting value is outside the range for the data type INTEGER.ij> insert into a values(1);1 row inserted/updated/deletedij> select * from a;A          -----1          ij> drop table a;0 rows inserted/updated/deletedij> -- Bug 4694 Test automatic rollback with close of connection----- in ijautocommit off;ij> create table a (a int);0 rows inserted/updated/deletedij> -- Bug 4758 - Store error does not return properly to clientautocommit off;ij> create table t (i int);0 rows inserted/updated/deletedij> insert into t values(1);1 row inserted/updated/deletedij> commit;ij> insert into t values(2);1 row inserted/updated/deletedij> connect 'wombat';ij(CONNECTION1)> -- by default, holdability of ResultSet objects created using this Connection object is true. Following will set it to false for this connection.NoHoldForConnection;ij(CONNECTION1)> prepare s1 as 'select * from t';ij(CONNECTION1)> execute s1;I          -----ERROR 40XL1: A lock could not be obtained within the time requestedij(CONNECTION1)> execute s1;I          -----ERROR 40XL1: A lock could not be obtained within the time requestedij(CONNECTION1)> -- Bug 5967 - Selecting from 2 lob columns w/ the first one having data of length 0create table t1 (c1 clob(10), c2 clob(10));0 rows inserted/updated/deletedij(CONNECTION1)> insert into t1 values ('', 'some clob');1 row inserted/updated/deletedij(CONNECTION1)> select * from t1;C1 |C2        ----- |some clob ij(CONNECTION1)> select c2 from t1;C2        -----some clob ij(CONNECTION1)> insert into t1 values ('', '');1 row inserted/updated/deletedij(CONNECTION1)> insert into t1 values ('some clob', '');1 row inserted/updated/deletedij(CONNECTION1)> select * from t1;C1 |C2        ----- |some clob  |          some clob |          ij(CONNECTION1)> select c2 from t1;C2        -----some clob ij(CONNECTION1)> drop table t1;0 rows inserted/updated/deletedij(CONNECTION1)> 

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