diff --git a/Cargo.lock b/Cargo.lock
index 29f0ffc..3ba1b85 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4070,7 +4070,7 @@ dependencies = [
 
 [[package]]
 name = "sqlite-web"
-version = "0.0.1-alpha.1"
+version = "0.0.1-alpha.3"
 dependencies = [
  "base64 0.21.7",
  "js-sys",
@@ -4086,7 +4086,7 @@ dependencies = [
 
 [[package]]
 name = "sqlite-web-core"
-version = "0.0.1-alpha.1"
+version = "0.0.1-alpha.3"
 dependencies = [
  "alloy",
  "console_error_panic_hook",
diff --git a/packages/sqlite-web-core/src/database_functions/float_zero_hex.rs b/packages/sqlite-web-core/src/database_functions/float_zero_hex.rs
new file mode 100644
index 0000000..e5a25c2
--- /dev/null
+++ b/packages/sqlite-web-core/src/database_functions/float_zero_hex.rs
@@ -0,0 +1,32 @@
+use super::*;
+
+pub(crate) fn sqlite_transient() -> Option<unsafe extern "C" fn(*mut std::ffi::c_void)> {
+    // SQLite uses the value -1 cast to a function pointer as a sentinel meaning
+    // "make your own copy" for the result buffer (a.k.a. SQLITE_TRANSIENT).
+    Some(unsafe {
+        std::mem::transmute::<isize, unsafe extern "C" fn(*mut std::ffi::c_void)>(-1isize)
+    })
+}
+
+/// Scalar SQLite function that returns the canonical zero Float as a hex string.
+pub(crate) unsafe extern "C" fn float_zero_hex(
+    context: *mut sqlite3_context,
+    argc: c_int,
+    _argv: *mut *mut sqlite3_value,
+) {
+    if argc != 0 {
+        sqlite3_result_error(
+            context,
+            c"FLOAT_ZERO_HEX() does not take any arguments".as_ptr(),
+            -1,
+        );
+        sqlite3_result_error_code(context, SQLITE_MISUSE);
+        return;
+    }
+
+    let zero_hex = Float::default().as_hex();
+    let zero_hex_ptr = zero_hex.as_ptr() as *const c_char;
+    let zero_hex_len = zero_hex.len() as c_int;
+
+    sqlite3_result_text(context, zero_hex_ptr, zero_hex_len, sqlite_transient());
+}
diff --git a/packages/sqlite-web-core/src/database_functions/mod.rs b/packages/sqlite-web-core/src/database_functions/mod.rs
index 200b8af..4560582 100644
--- a/packages/sqlite-web-core/src/database_functions/mod.rs
+++ b/packages/sqlite-web-core/src/database_functions/mod.rs
@@ -10,11 +10,13 @@ use std::str::FromStr;
 mod bigint_sum;
 mod float_negate;
 mod float_sum;
+mod float_zero_hex;
 mod rain_math;
 
 use bigint_sum::*;
 use float_negate::*;
 use float_sum::*;
+use float_zero_hex::*;
 
 pub use rain_math::*;
 
@@ -80,6 +82,26 @@ pub fn register_custom_functions(db: *mut sqlite3) -> Result<(), String> {
         return Err("Failed to register FLOAT_SUM function".to_string());
     }
 
+    // Register FLOAT_ZERO_HEX scalar function
+    let float_zero_hex_name = CString::new("FLOAT_ZERO_HEX").unwrap();
+    let ret = unsafe {
+        sqlite3_create_function_v2(
+            db,
+            float_zero_hex_name.as_ptr(),
+            0, // 0 arguments
+            SQLITE_UTF8 | SQLITE_DETERMINISTIC | SQLITE_INNOCUOUS,
+            std::ptr::null_mut(),
+            Some(float_zero_hex), // Scalar function
+            None,
+            None,
+            None,
+        )
+    };
+
+    if ret != SQLITE_OK {
+        return Err("Failed to register FLOAT_ZERO_HEX function".to_string());
+    }
+
     // Register FLOAT_NEGATE scalar function
     let float_negate_name = CString::new("FLOAT_NEGATE").unwrap();
     let ret = unsafe {
diff --git a/pkg/package.json b/pkg/package.json
index f8e4ffb..d809757 100644
--- a/pkg/package.json
+++ b/pkg/package.json
@@ -12,4 +12,4 @@
   "sideEffects": [
     "./snippets/*"
   ]
-}
+}
\ No newline at end of file
diff --git a/svelte-test/package-lock.json b/svelte-test/package-lock.json
index d9012b0..0c8fd74 100644
--- a/svelte-test/package-lock.json
+++ b/svelte-test/package-lock.json
@@ -9,7 +9,7 @@
 			"version": "0.0.1",
 			"dependencies": {
 				"@rainlanguage/float": "^0.0.0-alpha.22",
-				"@rainlanguage/sqlite-web": "file:../pkg/rainlanguage-sqlite-web-0.0.1-alpha.1.tgz"
+				"@rainlanguage/sqlite-web": "file:../pkg/rainlanguage-sqlite-web-0.0.1-alpha.3.tgz"
 			},
 			"devDependencies": {
 				"@sveltejs/adapter-auto": "^6.0.0",
@@ -942,14 +942,14 @@
 			}
 		},
 		"node_modules/@rainlanguage/sqlite-web": {
-			"version": "0.0.1-alpha.1",
-			"resolved": "file:../pkg/rainlanguage-sqlite-web-0.0.1-alpha.1.tgz",
-			"integrity": "sha512-ESo2QZ19Yb/ieJ3b4uL4Ber7QXG2PXww/qkDkwnxEktpPF1y+9ei7MJ7ch1oN77VXVuD+xg9lTdrzbkqwFr/oQ=="
+			"version": "0.0.1-alpha.3",
+			"resolved": "file:../pkg/rainlanguage-sqlite-web-0.0.1-alpha.3.tgz",
+			"integrity": "sha512-BHxjfAcz2bQmiqbwP+pVzvZ9vlHzz6Zric1e3gareJiFx6XAGxaPIMJhk2KtvgWjH7+/+TklW7kHTJhWLgAXEw=="
 		},
 		"node_modules/@rollup/rollup-android-arm-eabi": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/@rollup/rollup-android-arm-eabi/-/rollup-android-arm-eabi-4.50.2.tgz",
-			"integrity": "sha512-uLN8NAiFVIRKX9ZQha8wy6UUs06UNSZ32xj6giK/rmMXAgKahwExvK6SsmgU5/brh4w/nSgj8e0k3c1HBQpa0A==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/@rollup/rollup-android-arm-eabi/-/rollup-android-arm-eabi-4.51.0.tgz",
+			"integrity": "sha512-VyfldO8T/C5vAXBGIobrAnUE+VJNVLw5z9h4NgSDq/AJZWt/fXqdW+0PJbk+M74xz7yMDRiHtlsuDV7ew6K20w==",
 			"cpu": [
 				"arm"
 			],
@@ -961,9 +961,9 @@
 			]
 		},
 		"node_modules/@rollup/rollup-android-arm64": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/@rollup/rollup-android-arm64/-/rollup-android-arm64-4.50.2.tgz",
-			"integrity": "sha512-oEouqQk2/zxxj22PNcGSskya+3kV0ZKH+nQxuCCOGJ4oTXBdNTbv+f/E3c74cNLeMO1S5wVWacSws10TTSB77g==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/@rollup/rollup-android-arm64/-/rollup-android-arm64-4.51.0.tgz",
+			"integrity": "sha512-Z3ujzDZgsEVSokgIhmOAReh9SGT2qloJJX2Xo1Q3nPU1EhCXrV0PbpR3r7DWRgozqnjrPZQkLe5cgBPIYp70Vg==",
 			"cpu": [
 				"arm64"
 			],
@@ -975,9 +975,9 @@
 			]
 		},
 		"node_modules/@rollup/rollup-darwin-arm64": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/@rollup/rollup-darwin-arm64/-/rollup-darwin-arm64-4.50.2.tgz",
-			"integrity": "sha512-OZuTVTpj3CDSIxmPgGH8en/XtirV5nfljHZ3wrNwvgkT5DQLhIKAeuFSiwtbMto6oVexV0k1F1zqURPKf5rI1Q==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/@rollup/rollup-darwin-arm64/-/rollup-darwin-arm64-4.51.0.tgz",
+			"integrity": "sha512-T3gskHgArUdR6TCN69li5VELVAZK+iQ4iwMoSMNYixoj+56EC9lTj35rcxhXzIJt40YfBkvDy3GS+t5zh7zM6g==",
 			"cpu": [
 				"arm64"
 			],
@@ -989,9 +989,9 @@
 			]
 		},
 		"node_modules/@rollup/rollup-darwin-x64": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/@rollup/rollup-darwin-x64/-/rollup-darwin-x64-4.50.2.tgz",
-			"integrity": "sha512-Wa/Wn8RFkIkr1vy1k1PB//VYhLnlnn5eaJkfTQKivirOvzu5uVd2It01ukeQstMursuz7S1bU+8WW+1UPXpa8A==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/@rollup/rollup-darwin-x64/-/rollup-darwin-x64-4.51.0.tgz",
+			"integrity": "sha512-Hh7n/fh0g5UjH6ATDF56Qdf5bzdLZKIbhp5KftjMYG546Ocjeyg15dxphCpH1FFY2PJ2G6MiOVL4jMq5VLTyrQ==",
 			"cpu": [
 				"x64"
 			],
@@ -1003,9 +1003,9 @@
 			]
 		},
 		"node_modules/@rollup/rollup-freebsd-arm64": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/@rollup/rollup-freebsd-arm64/-/rollup-freebsd-arm64-4.50.2.tgz",
-			"integrity": "sha512-QkzxvH3kYN9J1w7D1A+yIMdI1pPekD+pWx7G5rXgnIlQ1TVYVC6hLl7SOV9pi5q9uIDF9AuIGkuzcbF7+fAhow==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/@rollup/rollup-freebsd-arm64/-/rollup-freebsd-arm64-4.51.0.tgz",
+			"integrity": "sha512-0EddADb6FBvfqYoxwVom3hAbAvpSVUbZqmR1wmjk0MSZ06hn/UxxGHKRqEQDMkts7XiZjejVB+TLF28cDTU+gA==",
 			"cpu": [
 				"arm64"
 			],
@@ -1017,9 +1017,9 @@
 			]
 		},
 		"node_modules/@rollup/rollup-freebsd-x64": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/@rollup/rollup-freebsd-x64/-/rollup-freebsd-x64-4.50.2.tgz",
-			"integrity": "sha512-dkYXB0c2XAS3a3jmyDkX4Jk0m7gWLFzq1C3qUnJJ38AyxIF5G/dyS4N9B30nvFseCfgtCEdbYFhk0ChoCGxPog==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/@rollup/rollup-freebsd-x64/-/rollup-freebsd-x64-4.51.0.tgz",
+			"integrity": "sha512-MpqaEDLo3JuVPF+wWV4mK7V8akL76WCz8ndfz1aVB7RhvXFO3k7yT7eu8OEuog4VTSyNu5ibvN9n6lgjq/qLEQ==",
 			"cpu": [
 				"x64"
 			],
@@ -1031,9 +1031,9 @@
 			]
 		},
 		"node_modules/@rollup/rollup-linux-arm-gnueabihf": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-arm-gnueabihf/-/rollup-linux-arm-gnueabihf-4.50.2.tgz",
-			"integrity": "sha512-9VlPY/BN3AgbukfVHAB8zNFWB/lKEuvzRo1NKev0Po8sYFKx0i+AQlCYftgEjcL43F2h9Ui1ZSdVBc4En/sP2w==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-arm-gnueabihf/-/rollup-linux-arm-gnueabihf-4.51.0.tgz",
+			"integrity": "sha512-WEWAGFNFFpvSWAIT3MYvxTkYHv/cJl9yWKpjhheg7ONfB0hetZt/uwBnM3GZqSHrk5bXCDYTFXg3jQyk/j7eXQ==",
 			"cpu": [
 				"arm"
 			],
@@ -1045,9 +1045,9 @@
 			]
 		},
 		"node_modules/@rollup/rollup-linux-arm-musleabihf": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-arm-musleabihf/-/rollup-linux-arm-musleabihf-4.50.2.tgz",
-			"integrity": "sha512-+GdKWOvsifaYNlIVf07QYan1J5F141+vGm5/Y8b9uCZnG/nxoGqgCmR24mv0koIWWuqvFYnbURRqw1lv7IBINw==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-arm-musleabihf/-/rollup-linux-arm-musleabihf-4.51.0.tgz",
+			"integrity": "sha512-9bxtxj8QoAp++LOq5PGDGkEEOpCDk9rOEHUcXadnijedDH8IXrBt6PnBa4Y6NblvGWdoxvXZYghZLaliTCmAng==",
 			"cpu": [
 				"arm"
 			],
@@ -1059,9 +1059,9 @@
 			]
 		},
 		"node_modules/@rollup/rollup-linux-arm64-gnu": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-arm64-gnu/-/rollup-linux-arm64-gnu-4.50.2.tgz",
-			"integrity": "sha512-df0Eou14ojtUdLQdPFnymEQteENwSJAdLf5KCDrmZNsy1c3YaCNaJvYsEUHnrg+/DLBH612/R0xd3dD03uz2dg==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-arm64-gnu/-/rollup-linux-arm64-gnu-4.51.0.tgz",
+			"integrity": "sha512-DdqA+fARqIsfqDYkKo2nrWMp0kvu/wPJ2G8lZ4DjYhn+8QhrjVuzmsh7tTkhULwjvHTN59nWVzAixmOi6rqjNA==",
 			"cpu": [
 				"arm64"
 			],
@@ -1073,9 +1073,9 @@
 			]
 		},
 		"node_modules/@rollup/rollup-linux-arm64-musl": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-arm64-musl/-/rollup-linux-arm64-musl-4.50.2.tgz",
-			"integrity": "sha512-iPeouV0UIDtz8j1YFR4OJ/zf7evjauqv7jQ/EFs0ClIyL+by++hiaDAfFipjOgyz6y6xbDvJuiU4HwpVMpRFDQ==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-arm64-musl/-/rollup-linux-arm64-musl-4.51.0.tgz",
+			"integrity": "sha512-2XVRNzcUJE1UJua8P4a1GXS5jafFWE+pQ6zhUbZzptOu/70p1F6+0FTi6aGPd6jNtnJqGMjtBCXancC2dhYlWw==",
 			"cpu": [
 				"arm64"
 			],
@@ -1087,9 +1087,9 @@
 			]
 		},
 		"node_modules/@rollup/rollup-linux-loong64-gnu": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-loong64-gnu/-/rollup-linux-loong64-gnu-4.50.2.tgz",
-			"integrity": "sha512-OL6KaNvBopLlj5fTa5D5bau4W82f+1TyTZRr2BdnfsrnQnmdxh4okMxR2DcDkJuh4KeoQZVuvHvzuD/lyLn2Kw==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-loong64-gnu/-/rollup-linux-loong64-gnu-4.51.0.tgz",
+			"integrity": "sha512-R8QhY0kLIPCAVXWi2yftDSpn7Jtejey/WhMoBESSfwGec5SKdFVupjxFlKoQ7clVRuaDpiQf7wNx3EBZf4Ey6g==",
 			"cpu": [
 				"loong64"
 			],
@@ -1101,9 +1101,9 @@
 			]
 		},
 		"node_modules/@rollup/rollup-linux-ppc64-gnu": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-ppc64-gnu/-/rollup-linux-ppc64-gnu-4.50.2.tgz",
-			"integrity": "sha512-I21VJl1w6z/K5OTRl6aS9DDsqezEZ/yKpbqlvfHbW0CEF5IL8ATBMuUx6/mp683rKTK8thjs/0BaNrZLXetLag==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-ppc64-gnu/-/rollup-linux-ppc64-gnu-4.51.0.tgz",
+			"integrity": "sha512-I498RPfxx9cMv1KTHQ9tg2Ku1utuQm+T5B+Xro+WNu3FzAFSKp4awKfgMoZwjoPgNbaFGINaOM25cQW6WuBhiQ==",
 			"cpu": [
 				"ppc64"
 			],
@@ -1115,9 +1115,9 @@
 			]
 		},
 		"node_modules/@rollup/rollup-linux-riscv64-gnu": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-riscv64-gnu/-/rollup-linux-riscv64-gnu-4.50.2.tgz",
-			"integrity": "sha512-Hq6aQJT/qFFHrYMjS20nV+9SKrXL2lvFBENZoKfoTH2kKDOJqff5OSJr4x72ZaG/uUn+XmBnGhfr4lwMRrmqCQ==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-riscv64-gnu/-/rollup-linux-riscv64-gnu-4.51.0.tgz",
+			"integrity": "sha512-o8COudsb8lvtdm9ixg9aKjfX5aeoc2x9KGE7WjtrmQFquoCRZ9jtzGlonujE4WhvXFepTraWzT4RcwyDDeHXjA==",
 			"cpu": [
 				"riscv64"
 			],
@@ -1129,9 +1129,9 @@
 			]
 		},
 		"node_modules/@rollup/rollup-linux-riscv64-musl": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-riscv64-musl/-/rollup-linux-riscv64-musl-4.50.2.tgz",
-			"integrity": "sha512-82rBSEXRv5qtKyr0xZ/YMF531oj2AIpLZkeNYxmKNN6I2sVE9PGegN99tYDLK2fYHJITL1P2Lgb4ZXnv0PjQvw==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-riscv64-musl/-/rollup-linux-riscv64-musl-4.51.0.tgz",
+			"integrity": "sha512-0shJPgSXMdYzOQzpM5BJN2euXY1f8uV8mS6AnrbMcH2KrkNsbpMxWB1wp8UEdiJ1NtyBkCk3U/HfX5mEONBq6w==",
 			"cpu": [
 				"riscv64"
 			],
@@ -1143,9 +1143,9 @@
 			]
 		},
 		"node_modules/@rollup/rollup-linux-s390x-gnu": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-s390x-gnu/-/rollup-linux-s390x-gnu-4.50.2.tgz",
-			"integrity": "sha512-4Q3S3Hy7pC6uaRo9gtXUTJ+EKo9AKs3BXKc2jYypEcMQ49gDPFU2P1ariX9SEtBzE5egIX6fSUmbmGazwBVF9w==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-s390x-gnu/-/rollup-linux-s390x-gnu-4.51.0.tgz",
+			"integrity": "sha512-L7pV+ny7865jamSCQwyozBYjFRUKaTsPqDz7ClOtJCDu4paf2uAa0mrcHwSt4XxZP2ogFZS9uuitH3NXdeBEJA==",
 			"cpu": [
 				"s390x"
 			],
@@ -1157,9 +1157,9 @@
 			]
 		},
 		"node_modules/@rollup/rollup-linux-x64-gnu": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-x64-gnu/-/rollup-linux-x64-gnu-4.50.2.tgz",
-			"integrity": "sha512-9Jie/At6qk70dNIcopcL4p+1UirusEtznpNtcq/u/C5cC4HBX7qSGsYIcG6bdxj15EYWhHiu02YvmdPzylIZlA==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-x64-gnu/-/rollup-linux-x64-gnu-4.51.0.tgz",
+			"integrity": "sha512-4YHhP+Rv3T3+H3TPbUvWOw5tuSwhrVhkHHZhk4hC9VXeAOKR26/IsUAT4FsB4mT+kfIdxxb1BezQDEg/voPO8A==",
 			"cpu": [
 				"x64"
 			],
@@ -1171,9 +1171,9 @@
 			]
 		},
 		"node_modules/@rollup/rollup-linux-x64-musl": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-x64-musl/-/rollup-linux-x64-musl-4.50.2.tgz",
-			"integrity": "sha512-HPNJwxPL3EmhzeAnsWQCM3DcoqOz3/IC6de9rWfGR8ZCuEHETi9km66bH/wG3YH0V3nyzyFEGUZeL5PKyy4xvw==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/@rollup/rollup-linux-x64-musl/-/rollup-linux-x64-musl-4.51.0.tgz",
+			"integrity": "sha512-P7U7U03+E5w7WgJtvSseNLOX1UhknVPmEaqgUENFWfNxNBa1OhExT6qYGmyF8gepcxWSaSfJsAV5UwhWrYefdQ==",
 			"cpu": [
 				"x64"
 			],
@@ -1185,9 +1185,9 @@
 			]
 		},
 		"node_modules/@rollup/rollup-openharmony-arm64": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/@rollup/rollup-openharmony-arm64/-/rollup-openharmony-arm64-4.50.2.tgz",
-			"integrity": "sha512-nMKvq6FRHSzYfKLHZ+cChowlEkR2lj/V0jYj9JnGUVPL2/mIeFGmVM2mLaFeNa5Jev7W7TovXqXIG2d39y1KYA==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/@rollup/rollup-openharmony-arm64/-/rollup-openharmony-arm64-4.51.0.tgz",
+			"integrity": "sha512-FuD8g3u9W6RPwdO1R45hZFORwa1g9YXEMesAKP/sOi7mDqxjbni8S3zAXJiDcRfGfGBqpRYVuH54Gu3FTuSoEw==",
 			"cpu": [
 				"arm64"
 			],
@@ -1199,9 +1199,9 @@
 			]
 		},
 		"node_modules/@rollup/rollup-win32-arm64-msvc": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/@rollup/rollup-win32-arm64-msvc/-/rollup-win32-arm64-msvc-4.50.2.tgz",
-			"integrity": "sha512-eFUvvnTYEKeTyHEijQKz81bLrUQOXKZqECeiWH6tb8eXXbZk+CXSG2aFrig2BQ/pjiVRj36zysjgILkqarS2YA==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/@rollup/rollup-win32-arm64-msvc/-/rollup-win32-arm64-msvc-4.51.0.tgz",
+			"integrity": "sha512-zST+FdMCX3QAYfmZX3dp/Fy8qLUetfE17QN5ZmmFGPrhl86qvRr+E9u2bk7fzkIXsfQR30Z7ZRS7WMryPPn4rQ==",
 			"cpu": [
 				"arm64"
 			],
@@ -1213,9 +1213,9 @@
 			]
 		},
 		"node_modules/@rollup/rollup-win32-ia32-msvc": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/@rollup/rollup-win32-ia32-msvc/-/rollup-win32-ia32-msvc-4.50.2.tgz",
-			"integrity": "sha512-cBaWmXqyfRhH8zmUxK3d3sAhEWLrtMjWBRwdMMHJIXSjvjLKvv49adxiEz+FJ8AP90apSDDBx2Tyd/WylV6ikA==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/@rollup/rollup-win32-ia32-msvc/-/rollup-win32-ia32-msvc-4.51.0.tgz",
+			"integrity": "sha512-U+qhoCVAZmTHCmUKxdQxw1jwAFNFXmOpMME7Npt5GTb1W/7itfgAgNluVOvyeuSeqW+dEQLFuNZF3YZPO8XkMg==",
 			"cpu": [
 				"ia32"
 			],
@@ -1227,9 +1227,9 @@
 			]
 		},
 		"node_modules/@rollup/rollup-win32-x64-msvc": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/@rollup/rollup-win32-x64-msvc/-/rollup-win32-x64-msvc-4.50.2.tgz",
-			"integrity": "sha512-APwKy6YUhvZaEoHyM+9xqmTpviEI+9eL7LoCH+aLcvWYHJ663qG5zx7WzWZY+a9qkg5JtzcMyJ9z0WtQBMDmgA==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/@rollup/rollup-win32-x64-msvc/-/rollup-win32-x64-msvc-4.51.0.tgz",
+			"integrity": "sha512-z6UpFzMhXSD8NNUfCi2HO+pbpSzSWIIPgb1TZsEZjmZYtk6RUIC63JYjlFBwbBZS3jt3f1q6IGfkj3g+GnBt2Q==",
 			"cpu": [
 				"x64"
 			],
@@ -4471,9 +4471,9 @@
 			}
 		},
 		"node_modules/rollup": {
-			"version": "4.50.2",
-			"resolved": "https://registry.npmjs.org/rollup/-/rollup-4.50.2.tgz",
-			"integrity": "sha512-BgLRGy7tNS9H66aIMASq1qSYbAAJV6Z6WR4QYTvj5FgF15rZ/ympT1uixHXwzbZUBDbkvqUI1KR0fH1FhMaQ9w==",
+			"version": "4.51.0",
+			"resolved": "https://registry.npmjs.org/rollup/-/rollup-4.51.0.tgz",
+			"integrity": "sha512-7cR0XWrdp/UAj2HMY/Y4QQEUjidn3l2AY1wSeZoFjMbD8aOMPoV9wgTFYbrJpPzzvejDEini1h3CiUP8wLzxQA==",
 			"dev": true,
 			"license": "MIT",
 			"dependencies": {
@@ -4487,27 +4487,27 @@
 				"npm": ">=8.0.0"
 			},
 			"optionalDependencies": {
-				"@rollup/rollup-android-arm-eabi": "4.50.2",
-				"@rollup/rollup-android-arm64": "4.50.2",
-				"@rollup/rollup-darwin-arm64": "4.50.2",
-				"@rollup/rollup-darwin-x64": "4.50.2",
-				"@rollup/rollup-freebsd-arm64": "4.50.2",
-				"@rollup/rollup-freebsd-x64": "4.50.2",
-				"@rollup/rollup-linux-arm-gnueabihf": "4.50.2",
-				"@rollup/rollup-linux-arm-musleabihf": "4.50.2",
-				"@rollup/rollup-linux-arm64-gnu": "4.50.2",
-				"@rollup/rollup-linux-arm64-musl": "4.50.2",
-				"@rollup/rollup-linux-loong64-gnu": "4.50.2",
-				"@rollup/rollup-linux-ppc64-gnu": "4.50.2",
-				"@rollup/rollup-linux-riscv64-gnu": "4.50.2",
-				"@rollup/rollup-linux-riscv64-musl": "4.50.2",
-				"@rollup/rollup-linux-s390x-gnu": "4.50.2",
-				"@rollup/rollup-linux-x64-gnu": "4.50.2",
-				"@rollup/rollup-linux-x64-musl": "4.50.2",
-				"@rollup/rollup-openharmony-arm64": "4.50.2",
-				"@rollup/rollup-win32-arm64-msvc": "4.50.2",
-				"@rollup/rollup-win32-ia32-msvc": "4.50.2",
-				"@rollup/rollup-win32-x64-msvc": "4.50.2",
+				"@rollup/rollup-android-arm-eabi": "4.51.0",
+				"@rollup/rollup-android-arm64": "4.51.0",
+				"@rollup/rollup-darwin-arm64": "4.51.0",
+				"@rollup/rollup-darwin-x64": "4.51.0",
+				"@rollup/rollup-freebsd-arm64": "4.51.0",
+				"@rollup/rollup-freebsd-x64": "4.51.0",
+				"@rollup/rollup-linux-arm-gnueabihf": "4.51.0",
+				"@rollup/rollup-linux-arm-musleabihf": "4.51.0",
+				"@rollup/rollup-linux-arm64-gnu": "4.51.0",
+				"@rollup/rollup-linux-arm64-musl": "4.51.0",
+				"@rollup/rollup-linux-loong64-gnu": "4.51.0",
+				"@rollup/rollup-linux-ppc64-gnu": "4.51.0",
+				"@rollup/rollup-linux-riscv64-gnu": "4.51.0",
+				"@rollup/rollup-linux-riscv64-musl": "4.51.0",
+				"@rollup/rollup-linux-s390x-gnu": "4.51.0",
+				"@rollup/rollup-linux-x64-gnu": "4.51.0",
+				"@rollup/rollup-linux-x64-musl": "4.51.0",
+				"@rollup/rollup-openharmony-arm64": "4.51.0",
+				"@rollup/rollup-win32-arm64-msvc": "4.51.0",
+				"@rollup/rollup-win32-ia32-msvc": "4.51.0",
+				"@rollup/rollup-win32-x64-msvc": "4.51.0",
 				"fsevents": "~2.3.2"
 			}
 		},
diff --git a/svelte-test/package.json b/svelte-test/package.json
index 196d627..be9adb8 100644
--- a/svelte-test/package.json
+++ b/svelte-test/package.json
@@ -41,6 +41,6 @@
 	"type": "module",
 	"dependencies": {
 		"@rainlanguage/float": "^0.0.0-alpha.22",
-		"@rainlanguage/sqlite-web": "file:../pkg/rainlanguage-sqlite-web-0.0.1-alpha.1.tgz"
+		"@rainlanguage/sqlite-web": "file:../pkg/rainlanguage-sqlite-web-0.0.1-alpha.3.tgz"
 	}
 }
diff --git a/svelte-test/tests/database-functions/float-zero-hex.test.ts b/svelte-test/tests/database-functions/float-zero-hex.test.ts
new file mode 100644
index 0000000..f493c20
--- /dev/null
+++ b/svelte-test/tests/database-functions/float-zero-hex.test.ts
@@ -0,0 +1,108 @@
+import { describe, it, expect, beforeEach, afterEach } from "vitest";
+import {
+  createTestDatabase,
+  cleanupDatabase,
+} from "../fixtures/test-helpers.js";
+import type { SQLiteWasmDatabase } from "@rainlanguage/sqlite-web";
+import {
+  decodeFloatHex,
+  encodeFloatHex,
+} from "../fixtures/float-utils.js";
+
+describe("FLOAT_ZERO_HEX Database Function", () => {
+  let db: SQLiteWasmDatabase;
+  const canonicalZeroHex = encodeFloatHex("0");
+
+  beforeEach(async () => {
+    db = await createTestDatabase();
+  });
+
+  afterEach(async () => {
+    await cleanupDatabase(db);
+  });
+
+  it("should be registered and return the canonical zero hex string", async () => {
+    const result = await db.query("SELECT FLOAT_ZERO_HEX() as zero_hex");
+    const data = JSON.parse(result.value || "[]");
+    expect(data).toHaveLength(1);
+    expect(data[0].zero_hex).toBe(canonicalZeroHex);
+
+    const decimal = decodeFloatHex(data[0].zero_hex);
+    expect(decimal).toBe("0");
+  });
+
+  it("should integrate with queries storing and aggregating zero floats", async () => {
+    await db.query(`
+      CREATE TABLE float_zero_usage (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        amount TEXT NOT NULL
+      )
+    `);
+
+    await db.query(
+      "INSERT INTO float_zero_usage (amount) VALUES (FLOAT_ZERO_HEX())",
+    );
+    await db.query(
+      "INSERT INTO float_zero_usage (amount) VALUES (FLOAT_ZERO_HEX())",
+    );
+
+    const stored = await db.query(
+      "SELECT amount FROM float_zero_usage ORDER BY id",
+    );
+    const storedData = JSON.parse(stored.value || "[]");
+    expect(storedData).toHaveLength(2);
+    for (const row of storedData) {
+      expect(row.amount).toBe(canonicalZeroHex);
+      expect(decodeFloatHex(row.amount)).toBe("0");
+    }
+
+    const sumResult = await db.query(
+      "SELECT FLOAT_SUM(amount) as total FROM float_zero_usage",
+    );
+    const sumData = JSON.parse(sumResult.value || "[]");
+    expect(sumData).toHaveLength(1);
+    expect(sumData[0].total).toBe(canonicalZeroHex);
+    expect(decodeFloatHex(sumData[0].total)).toBe("0");
+  });
+
+  it("should return identical canonical values across multiple invocations", async () => {
+    const result = await db.query(
+      "SELECT FLOAT_ZERO_HEX() as first, FLOAT_ZERO_HEX() as second",
+    );
+    const data = JSON.parse(result.value || "[]");
+    expect(data).toHaveLength(1);
+
+    const first = data[0]?.first;
+    const second = data[0]?.second;
+    expect(first).toBe(canonicalZeroHex);
+    expect(second).toBe(canonicalZeroHex);
+    expect(first).toBe(second);
+    expect(decodeFloatHex(first)).toBe("0");
+    expect(decodeFloatHex(second)).toBe("0");
+  });
+
+  it("should apply canonical zero when used as a default value", async () => {
+    await db.query(`
+      CREATE TABLE float_zero_defaults (
+        id INTEGER PRIMARY KEY AUTOINCREMENT,
+        amount TEXT NOT NULL DEFAULT (FLOAT_ZERO_HEX())
+      )
+    `);
+
+    await db.query("INSERT INTO float_zero_defaults DEFAULT VALUES");
+    await db.query(
+      "INSERT INTO float_zero_defaults (amount) VALUES (FLOAT_ZERO_HEX())",
+    );
+
+    const stored = await db.query(
+      "SELECT amount FROM float_zero_defaults ORDER BY id",
+    );
+    const storedData = JSON.parse(stored.value || "[]");
+    expect(storedData).toHaveLength(2);
+
+    for (const row of storedData) {
+      expect(row.amount).toBe(canonicalZeroHex);
+      expect(decodeFloatHex(row.amount)).toBe("0");
+    }
+  });
+});
diff --git a/svelte-test/tests/fixtures/test-helpers.ts b/svelte-test/tests/fixtures/test-helpers.ts
index 38f0cd0..75bc6a2 100644
--- a/svelte-test/tests/fixtures/test-helpers.ts
+++ b/svelte-test/tests/fixtures/test-helpers.ts
@@ -188,8 +188,8 @@ export async function cleanupDatabase(db: SQLiteWasmDatabase): Promise<void> {
 			// Multi-SQL commands (UI) test tables
 			'multi_ui', 'semi_ui', 'gate_ui', 'trg_src_ui', 'trg_log_ui',
 			// Database function test tables
-			'bigint_test', 'categories', 'float_test', 'float_categories'
-			];
+			'bigint_test', 'categories', 'float_test', 'float_categories', 'float_zero_usage', 'float_zero_defaults'
+		];
 		for (const table of tables) {
 			try {
 				await db.query(`DROP TABLE IF EXISTS ${table}`);