--- /dev/null
+# 2010 September 20
+#
+# The author disclaims copyright to this source code. In place of
+# a legal notice, here is a blessing:
+#
+# May you do good and not evil.
+# May you find forgiveness for yourself and forgive others.
+# May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file implements tests to verify that the "testable statements" in
+# the lang_update.html document are correct.
+#
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+forcedelete test.db2
+
+do_execsql_test e_update-0.0 {
+ CREATE TABLE t1(a, b);
+
+ ATTACH 'test.db2' AS aux;
+ CREATE TABLE aux.t1(a, b);
+
+ CREATE TABLE t2(a, b, c);
+
+ CREATE TABLE t3(a, b UNIQUE);
+} {}
+
+proc do_update_tests {args} {
+ uplevel do_select_tests $args
+}
+
+# EVIDENCE-OF: R-05685-44205 -- syntax diagram update-stmt
+#
+do_update_tests e_update-0 {
+ 1 "UPDATE t1 SET a=10" {}
+ 2 "UPDATE t1 SET a=10, b=5" {}
+ 3 "UPDATE t1 SET a=10 WHERE b=5" {}
+ 4 "UPDATE t1 SET b=5,a=10 WHERE 1" {}
+ 5 "UPDATE main.t1 SET a=10" {}
+ 6 "UPDATE main.t1 SET a=10, b=5" {}
+ 7 "UPDATE main.t1 SET a=10 WHERE b=5" {}
+ 9 "UPDATE OR ROLLBACK t1 SET a=10" {}
+ 10 "UPDATE OR ROLLBACK t1 SET a=10, b=5" {}
+ 11 "UPDATE OR ROLLBACK t1 SET a=10 WHERE b=5" {}
+ 12 "UPDATE OR ROLLBACK t1 SET b=5,a=10 WHERE 1" {}
+ 13 "UPDATE OR ROLLBACK main.t1 SET a=10" {}
+ 14 "UPDATE OR ROLLBACK main.t1 SET a=10, b=5" {}
+ 15 "UPDATE OR ROLLBACK main.t1 SET a=10 WHERE b=5" {}
+ 16 "UPDATE OR ROLLBACK main.t1 SET b=5,a=10 WHERE 1" {}
+ 17 "UPDATE OR ABORT t1 SET a=10" {}
+ 18 "UPDATE OR ABORT t1 SET a=10, b=5" {}
+ 19 "UPDATE OR ABORT t1 SET a=10 WHERE b=5" {}
+ 20 "UPDATE OR ABORT t1 SET b=5,a=10 WHERE 1" {}
+ 21 "UPDATE OR ABORT main.t1 SET a=10" {}
+ 22 "UPDATE OR ABORT main.t1 SET a=10, b=5" {}
+ 23 "UPDATE OR ABORT main.t1 SET a=10 WHERE b=5" {}
+ 24 "UPDATE OR ABORT main.t1 SET b=5,a=10 WHERE 1" {}
+ 25 "UPDATE OR REPLACE t1 SET a=10" {}
+ 26 "UPDATE OR REPLACE t1 SET a=10, b=5" {}
+ 27 "UPDATE OR REPLACE t1 SET a=10 WHERE b=5" {}
+ 28 "UPDATE OR REPLACE t1 SET b=5,a=10 WHERE 1" {}
+ 29 "UPDATE OR REPLACE main.t1 SET a=10" {}
+ 30 "UPDATE OR REPLACE main.t1 SET a=10, b=5" {}
+ 31 "UPDATE OR REPLACE main.t1 SET a=10 WHERE b=5" {}
+ 32 "UPDATE OR REPLACE main.t1 SET b=5,a=10 WHERE 1" {}
+ 33 "UPDATE OR FAIL t1 SET a=10" {}
+ 34 "UPDATE OR FAIL t1 SET a=10, b=5" {}
+ 35 "UPDATE OR FAIL t1 SET a=10 WHERE b=5" {}
+ 36 "UPDATE OR FAIL t1 SET b=5,a=10 WHERE 1" {}
+ 37 "UPDATE OR FAIL main.t1 SET a=10" {}
+ 38 "UPDATE OR FAIL main.t1 SET a=10, b=5" {}
+ 39 "UPDATE OR FAIL main.t1 SET a=10 WHERE b=5" {}
+ 40 "UPDATE OR FAIL main.t1 SET b=5,a=10 WHERE 1" {}
+ 41 "UPDATE OR IGNORE t1 SET a=10" {}
+ 42 "UPDATE OR IGNORE t1 SET a=10, b=5" {}
+ 43 "UPDATE OR IGNORE t1 SET a=10 WHERE b=5" {}
+ 44 "UPDATE OR IGNORE t1 SET b=5,a=10 WHERE 1" {}
+ 45 "UPDATE OR IGNORE main.t1 SET a=10" {}
+ 46 "UPDATE OR IGNORE main.t1 SET a=10, b=5" {}
+ 47 "UPDATE OR IGNORE main.t1 SET a=10 WHERE b=5" {}
+ 48 "UPDATE OR IGNORE main.t1 SET b=5,a=10 WHERE 1" {}
+}
+
+# EVIDENCE-OF: R-38515-45264 An UPDATE statement is used to modify a
+# subset of the values stored in zero or more rows of the database table
+# identified by the qualified-table-name specified as part of the UPDATE
+# statement.
+#
+# Test cases e_update-1.1.1.* test the "identified by the
+# qualified-table-name" part of the statement above. Tests
+# e_update-1.1.2.* show that the "zero or more rows" part is
+# accurate.
+#
+do_execsql_test e_update-1.1.0 {
+ INSERT INTO main.t1 VALUES(1, 'i');
+ INSERT INTO main.t1 VALUES(2, 'ii');
+ INSERT INTO main.t1 VALUES(3, 'iii');
+
+ INSERT INTO aux.t1 VALUES(1, 'I');
+ INSERT INTO aux.t1 VALUES(2, 'II');
+ INSERT INTO aux.t1 VALUES(3, 'III');
+} {}
+do_update_tests e_update-1.1 {
+ 1.1 "UPDATE t1 SET a = a+1; SELECT * FROM t1" {2 i 3 ii 4 iii}
+ 1.2 "UPDATE main.t1 SET a = a+1; SELECT * FROM main.t1" {3 i 4 ii 5 iii}
+ 1.3 "UPDATE aux.t1 SET a = a+1; SELECT * FROM aux.t1" {2 I 3 II 4 III}
+
+ 2.1 "UPDATE t1 SET a = a+1 WHERE a = 1; SELECT * FROM t1" {3 i 4 ii 5 iii}
+ 2.2 "UPDATE t1 SET a = a+1 WHERE a = 4; SELECT * FROM t1" {3 i 5 ii 5 iii}
+}
+
+# EVIDENCE-OF: R-55869-30521 If the UPDATE statement does not have a
+# WHERE clause, all rows in the table are modified by the UPDATE.
+#
+do_execsql_test e_update-1.2.0 {
+ DELETE FROM main.t1;
+ INSERT INTO main.t1 VALUES(1, 'i');
+ INSERT INTO main.t1 VALUES(2, 'ii');
+ INSERT INTO main.t1 VALUES(3, 'iii');
+} {}
+do_update_tests e_update-1.2 {
+ 1 "UPDATE t1 SET b = 'roman' ; SELECT * FROM t1"
+ {1 roman 2 roman 3 roman}
+
+ 2 "UPDATE t1 SET a = 'greek' ; SELECT * FROM t1"
+ {greek roman greek roman greek roman}
+}
+
+# EVIDENCE-OF: R-41754-00978 Otherwise, the UPDATE affects only those
+# rows for which evaluating the WHERE clause expression and casting the
+# result to a NUMERIC value produces a value other than NULL or zero
+# (integer value 0 or real value 0.0).
+#
+do_execsql_test e_update-1.3.0 {
+ DELETE FROM main.t1;
+ INSERT INTO main.t1 VALUES(NULL, '');
+ INSERT INTO main.t1 VALUES(1, 'i');
+ INSERT INTO main.t1 VALUES(2, 'ii');
+ INSERT INTO main.t1 VALUES(3, 'iii');
+} {}
+do_update_tests e_update-1.3 {
+ 1 "UPDATE t1 SET b = 'roman' WHERE a<2 ; SELECT * FROM t1"
+ {{} {} 1 roman 2 ii 3 iii}
+
+ 2 "UPDATE t1 SET b = 'egyptian' WHERE (a-3)/10.0 ; SELECT * FROM t1"
+ {{} {} 1 egyptian 2 egyptian 3 iii}
+
+ 3 "UPDATE t1 SET b = 'macedonian' WHERE a; SELECT * FROM t1"
+ {{} {} 1 macedonian 2 macedonian 3 macedonian}
+
+ 4 "UPDATE t1 SET b = 'lithuanian' WHERE a IS NULL; SELECT * FROM t1"
+ {{} lithuanian 1 macedonian 2 macedonian 3 macedonian}
+}
+
+# EVIDENCE-OF: R-61178-36001 It is not an error if the WHERE clause does
+# not evaluate to a non-NULL, non-zero value for any row in the table -
+# this just means that the UPDATE statement affects zero rows.
+#
+do_execsql_test e_update-1.4.0 {
+ DELETE FROM main.t1;
+ INSERT INTO main.t1 VALUES(NULL, '');
+ INSERT INTO main.t1 VALUES(1, 'i');
+ INSERT INTO main.t1 VALUES(2, 'ii');
+ INSERT INTO main.t1 VALUES(3, 'iii');
+} {}
+do_update_tests e_update-1.4 -query {
+ SELECT * FROM t1
+} {
+ 1 "UPDATE t1 SET b = 'burmese' WHERE a=5" {{} {} 1 i 2 ii 3 iii}
+
+ 2 "UPDATE t1 SET b = 'burmese' WHERE length(b)<1 AND a IS NOT NULL"
+ {{} {} 1 i 2 ii 3 iii}
+
+ 3 "UPDATE t1 SET b = 'burmese' WHERE 0" {{} {} 1 i 2 ii 3 iii}
+
+ 4 "UPDATE t1 SET b = 'burmese' WHERE (SELECT a FROM t1 WHERE rowid=1)"
+ {{} {} 1 i 2 ii 3 iii}
+}
+
+# EVIDENCE-OF: R-40598-36595 For each affected row, the named columns
+# are set to the values found by evaluating the corresponding scalar
+# expressions.
+#
+# EVIDENCE-OF: R-40472-60438 Columns that do not appear in the list of
+# assignments are left unmodified.
+#
+do_execsql_test e_update-2.1.0 {
+ INSERT INTO t2(rowid, a, b, c) VALUES(1, 3, 1, 4);
+ INSERT INTO t2(rowid, a, b, c) VALUES(2, 1, 5, 9);
+ INSERT INTO t2(rowid, a, b, c) VALUES(3, 2, 6, 5);
+} {}
+do_update_tests e_update-2.1 -query {
+ SELECT * FROM t2
+} {
+ 1 "UPDATE t2 SET c = 1+1 WHERE a=2"
+ {3 1 4 1 5 9 2 6 2}
+
+ 2 "UPDATE t2 SET b = 4/2, c=CAST((0.4*5) AS INTEGER) WHERE a<3"
+ {3 1 4 1 2 2 2 2 2}
+
+ 3 "UPDATE t2 SET a = 1"
+ {1 1 4 1 2 2 1 2 2}
+
+ 4 "UPDATE t2 SET b = (SELECT count(*)+2 FROM t2), c = 24/3+1 WHERE rowid=2"
+ {1 1 4 1 5 9 1 2 2}
+
+ 5 "UPDATE t2 SET a = 3 WHERE c = 4"
+ {3 1 4 1 5 9 1 2 2}
+
+ 6 "UPDATE t2 SET a = b WHERE rowid>2"
+ {3 1 4 1 5 9 2 2 2}
+
+ 6 "UPDATE t2 SET b=6, c=5 WHERE a=b AND b=c"
+ {3 1 4 1 5 9 2 6 5}
+}
+
+# EVIDENCE-OF: R-09060-20018 If a single column-name appears more than
+# once in the list of assignment expressions, all but the rightmost
+# occurence is ignored.
+#
+do_update_tests e_update-2.1 -query {
+ SELECT * FROM t2
+} {
+ 1 "UPDATE t2 SET c=5, c=6, c=7 WHERE rowid=1" {3 1 7 1 5 9 2 6 5}
+ 2 "UPDATE t2 SET c=7, c=6, c=5 WHERE rowid=1" {3 1 5 1 5 9 2 6 5}
+ 3 "UPDATE t2 SET c=5, b=6, c=7 WHERE rowid=1" {3 6 7 1 5 9 2 6 5}
+}
+
+# EVIDENCE-OF: R-36239-04077 The scalar expressions may refer to columns
+# of the row being updated.
+#
+# EVIDENCE-OF: R-04558-24451 In this case all scalar expressions are
+# evaluated before any assignments are made.
+#
+do_execsql_test e_update-2.2.0 {
+ DELETE FROM t2;
+ INSERT INTO t2(rowid, a, b, c) VALUES(1, 3, 1, 4);
+ INSERT INTO t2(rowid, a, b, c) VALUES(2, 1, 5, 9);
+ INSERT INTO t2(rowid, a, b, c) VALUES(3, 2, 6, 5);
+} {}
+do_update_tests e_update-2.2 -query {
+ SELECT * FROM t2
+} {
+ 1 "UPDATE t2 SET a=b+c" {5 1 4 14 5 9 11 6 5}
+ 2 "UPDATE t2 SET a=b, b=a" {1 5 4 5 14 9 6 11 5}
+ 3 "UPDATE t2 SET a=c||c, c=NULL" {44 5 {} 99 14 {} 55 11 {}}
+}
+
+# EVIDENCE-OF: R-12619-24112 The optional conflict-clause allows the
+# user to nominate a specific constraint conflict resolution algorithm
+# to use during this one UPDATE command.
+#
+do_execsql_test e_update-2.2.0 {
+ DELETE FROM t3;
+ INSERT INTO t3 VALUES(1, 'one');
+ INSERT INTO t3 VALUES(2, 'two');
+ INSERT INTO t3 VALUES(3, 'three');
+ INSERT INTO t3 VALUES(4, 'four');
+} {}
+foreach {tn sql error ac data } {
+ 1 "UPDATE t3 SET b='one' WHERE a=3"
+ {column b is not unique} 1 {1 one 2 two 3 three 4 four}
+
+ 2 "UPDATE OR REPLACE t3 SET b='one' WHERE a=3"
+ {} 1 {2 two 3 one 4 four}
+
+ 3 "UPDATE OR FAIL t3 SET b='three'"
+ {column b is not unique} 1 {2 three 3 one 4 four}
+
+ 4 "UPDATE OR IGNORE t3 SET b='three' WHERE a=3"
+ {} 1 {2 three 3 one 4 four}
+
+ 5 "UPDATE OR ABORT t3 SET b='three' WHERE a=3"
+ {column b is not unique} 1 {2 three 3 one 4 four}
+
+ 6 "BEGIN" {} 0 {2 three 3 one 4 four}
+
+ 7 "UPDATE t3 SET b='three' WHERE a=3"
+ {column b is not unique} 0 {2 three 3 one 4 four}
+
+ 8 "UPDATE OR ABORT t3 SET b='three' WHERE a=3"
+ {column b is not unique} 0 {2 three 3 one 4 four}
+
+ 9 "UPDATE OR FAIL t3 SET b='two'"
+ {column b is not unique} 0 {2 two 3 one 4 four}
+
+ 10 "UPDATE OR IGNORE t3 SET b='four' WHERE a=3"
+ {} 0 {2 two 3 one 4 four}
+
+ 11 "UPDATE OR REPLACE t3 SET b='four' WHERE a=3"
+ {} 0 {2 two 3 four}
+
+ 12 "UPDATE OR ROLLBACK t3 SET b='four'"
+ {column b is not unique} 1 {2 three 3 one 4 four}
+} {
+ do_catchsql_test e_update-2.3.$tn.1 $sql [list [expr {$error!=""}] $error]
+ do_execsql_test e_update-2.3.$tn.2 {SELECT * FROM t3} [list {*}$data]
+ do_test e_update-2.3.$tn.3 {sqlite3_get_autocommit db} $ac
+}
+
+finish_test
projects / thirdparty / sqlite.git / commitdiff
