diff --git a/ibis/backends/duckdb/__init__.py b/ibis/backends/duckdb/__init__.py
index 0380bf3206b9..64253fda183a 100644
--- a/ibis/backends/duckdb/__init__.py
+++ b/ibis/backends/duckdb/__init__.py
@@ -1008,12 +1008,10 @@ def list_tables(
             .from_(sg.table("tables", db="information_schema"))
             .distinct()
             .where(
-                C.table_catalog.eq(catalog).or_(
-                    C.table_catalog.eq(sge.convert("temp"))
-                ),
-                C.table_schema.eq(database),
+                C.table_catalog.isin(sge.convert(catalog), sge.convert("temp")),
+                C.table_schema.eq(sge.convert(database)),
             )
-            .sql(self.name, pretty=True)
+            .sql(self.dialect)
         )
         out = self.con.execute(sql).fetch_arrow_table()
 
diff --git a/ibis/backends/duckdb/compiler.py b/ibis/backends/duckdb/compiler.py
index 2cc789ea360c..54c53b892117 100644
--- a/ibis/backends/duckdb/compiler.py
+++ b/ibis/backends/duckdb/compiler.py
@@ -238,21 +238,21 @@ def visit_MapMerge(self, op, *, left, right):
 
     def visit_ToJSONMap(self, op, *, arg):
         return self.if_(
-            self.f.json_type(arg).eq("OBJECT"),
+            self.f.json_type(arg).eq(sge.convert("OBJECT")),
             self.cast(self.cast(arg, dt.json), op.dtype),
             NULL,
         )
 
     def visit_ToJSONArray(self, op, *, arg):
         return self.if_(
-            self.f.json_type(arg).eq("ARRAY"),
+            self.f.json_type(arg).eq(sge.convert("ARRAY")),
             self.cast(self.cast(arg, dt.json), op.dtype),
             NULL,
         )
 
     def visit_UnwrapJSONString(self, op, *, arg):
         return self.if_(
-            self.f.json_type(arg).eq("VARCHAR"),
+            self.f.json_type(arg).eq(sge.convert("VARCHAR")),
             self.f.json_extract_string(arg, "$"),
             NULL,
         )
@@ -260,18 +260,26 @@ def visit_UnwrapJSONString(self, op, *, arg):
     def visit_UnwrapJSONInt64(self, op, *, arg):
         arg_type = self.f.json_type(arg)
         return self.if_(
-            arg_type.isin("UBIGINT", "BIGINT"), self.cast(arg, op.dtype), NULL
+            arg_type.isin(sge.convert("UBIGINT"), sge.convert("BIGINT")),
+            self.cast(arg, op.dtype),
+            NULL,
         )
 
     def visit_UnwrapJSONFloat64(self, op, *, arg):
         arg_type = self.f.json_type(arg)
         return self.if_(
-            arg_type.isin("UBIGINT", "BIGINT", "DOUBLE"), self.cast(arg, op.dtype), NULL
+            arg_type.isin(
+                sge.convert("UBIGINT"), sge.convert("BIGINT"), sge.convert("DOUBLE")
+            ),
+            self.cast(arg, op.dtype),
+            NULL,
         )
 
     def visit_UnwrapJSONBoolean(self, op, *, arg):
         return self.if_(
-            self.f.json_type(arg).eq("BOOLEAN"), self.cast(arg, op.dtype), NULL
+            self.f.json_type(arg).eq(sge.convert("BOOLEAN")),
+            self.cast(arg, op.dtype),
+            NULL,
         )
 
     def visit_ArrayConcat(self, op, *, arg):
diff --git a/ibis/backends/exasol/__init__.py b/ibis/backends/exasol/__init__.py
index e9b0186b0e71..0eb1afc1664a 100644
--- a/ibis/backends/exasol/__init__.py
+++ b/ibis/backends/exasol/__init__.py
@@ -50,7 +50,7 @@ def version(self) -> str:
         query = (
             sg.select("param_value")
             .from_(sg.table("EXA_METADATA", catalog="SYS"))
-            .where(C.param_name.eq("databaseProductVersion"))
+            .where(C.param_name.eq(sge.convert("databaseProductVersion")))
         )
         with self._safe_raw_sql(query) as result:
             [(version,)] = result.fetchall()
diff --git a/ibis/backends/mysql/__init__.py b/ibis/backends/mysql/__init__.py
index bbd0fa79c7f7..917f52fd7015 100644
--- a/ibis/backends/mysql/__init__.py
+++ b/ibis/backends/mysql/__init__.py
@@ -329,8 +329,6 @@ def list_tables(
                 sg_db.args["quoted"] = False
             conditions = [C.table_schema.eq(sge.convert(table_loc.sql(self.name)))]
 
-            # conditions.append(C.table_schema.eq(table_loc))
-
         col = "table_name"
         sql = (
             sg.select(col)
diff --git a/ibis/backends/mysql/compiler.py b/ibis/backends/mysql/compiler.py
index 66e791266c63..f4ce57ec931f 100644
--- a/ibis/backends/mysql/compiler.py
+++ b/ibis/backends/mysql/compiler.py
@@ -336,22 +336,28 @@ def visit_TimestampAdd(self, op, *, left, right):
 
     def visit_UnwrapJSONString(self, op, *, arg):
         return self.if_(
-            self.f.json_type(arg).eq("STRING"), self.f.json_unquote(arg), NULL
+            self.f.json_type(arg).eq(sge.convert("STRING")),
+            self.f.json_unquote(arg),
+            NULL,
         )
 
     def visit_UnwrapJSONInt64(self, op, *, arg):
         return self.if_(
-            self.f.json_type(arg).eq("INTEGER"), self.cast(arg, op.dtype), NULL
+            self.f.json_type(arg).eq(sge.convert("INTEGER")),
+            self.cast(arg, op.dtype),
+            NULL,
         )
 
     def visit_UnwrapJSONFloat64(self, op, *, arg):
         return self.if_(
-            self.f.json_type(arg).isin("DOUBLE", "INTEGER"),
+            self.f.json_type(arg).isin(sge.convert("DOUBLE"), sge.convert("INTEGER")),
             self.cast(arg, op.dtype),
             NULL,
         )
 
     def visit_UnwrapJSONBoolean(self, op, *, arg):
         return self.if_(
-            self.f.json_type(arg).eq("BOOLEAN"), self.if_(arg.eq("true"), 1, 0), NULL
+            self.f.json_type(arg).eq(sge.convert("BOOLEAN")),
+            self.if_(arg.eq(sge.convert("true")), 1, 0),
+            NULL,
         )
diff --git a/ibis/backends/oracle/__init__.py b/ibis/backends/oracle/__init__.py
index 2f1dc277b8b8..1107a5bc2cbc 100644
--- a/ibis/backends/oracle/__init__.py
+++ b/ibis/backends/oracle/__init__.py
@@ -550,10 +550,10 @@ def transformer(node):
                 C.data_type,
                 C.data_precision,
                 C.data_scale,
-                C.nullable.eq("Y"),
+                C.nullable.eq(sge.convert("Y")),
             )
             .from_("all_tab_columns")
-            .where(C.table_name.eq(name))
+            .where(C.table_name.eq(sge.convert(name)))
             .order_by(C.column_id)
             .sql(dialect)
         )
diff --git a/ibis/backends/postgres/__init__.py b/ibis/backends/postgres/__init__.py
index bdd8f2467967..1deaa654b895 100644
--- a/ibis/backends/postgres/__init__.py
+++ b/ibis/backends/postgres/__init__.py
@@ -352,11 +352,11 @@ def list_tables(
         if (db := table_loc.args["db"]) is not None:
             db.args["quoted"] = False
             db = db.sql(dialect=self.name)
-            conditions.append(C.table_schema.eq(db))
+            conditions.append(C.table_schema.eq(sge.convert(db)))
         if (catalog := table_loc.args["catalog"]) is not None:
             catalog.args["quoted"] = False
             catalog = catalog.sql(dialect=self.name)
-            conditions.append(C.table_catalog.eq(catalog))
+            conditions.append(C.table_catalog.eq(sge.convert(catalog)))
 
         sql = (
             sg.select("table_name")
@@ -385,7 +385,7 @@ def _fetch_temp_tables(self):
             sg.select("table_name")
             .from_(sg.table("tables", db="information_schema"))
             .distinct()
-            .where(C.table_type.eq("LOCAL TEMPORARY"))
+            .where(C.table_type.eq(sge.convert("LOCAL TEMPORARY")))
             .sql(self.dialect)
         )
 
@@ -434,7 +434,7 @@ def function(self, name: str, *, database: str | None = None) -> Callable:
         p = ColGen(table="p")
         f = self.compiler.f
 
-        predicates = [p.proname.eq(name)]
+        predicates = [p.proname.eq(sge.convert(name))]
 
         if database is not None:
             predicates.append(n.nspname.rlike(sge.convert(f"^({database})$")))
@@ -585,8 +585,8 @@ def get_schema(
             .where(
                 a.attnum > 0,
                 sg.not_(a.attisdropped),
-                n.nspname.eq(database) if database is not None else TRUE,
-                c.relname.eq(name),
+                n.nspname.eq(sge.convert(database)) if database is not None else TRUE,
+                c.relname.eq(sge.convert(name)),
             )
             .order_by(a.attnum)
         )
diff --git a/ibis/backends/postgres/compiler.py b/ibis/backends/postgres/compiler.py
index 2e74f380ffc9..496119949689 100644
--- a/ibis/backends/postgres/compiler.py
+++ b/ibis/backends/postgres/compiler.py
@@ -319,7 +319,7 @@ def visit_StructField(self, op, *, arg, field):
 
     def visit_UnwrapJSONString(self, op, *, arg):
         return self.if_(
-            self.f.json_typeof(arg).eq("string"),
+            self.f.json_typeof(arg).eq(sge.convert("string")),
             self.f.json_extract_path_text(
                 arg,
                 # this is apparently how you pass in no additional arguments to
@@ -336,7 +336,7 @@ def visit_UnwrapJSONInt64(self, op, *, arg):
             arg, sge.Var(this="VARIADIC ARRAY[]::TEXT[]")
         )
         return self.if_(
-            self.f.json_typeof(arg).eq("number"),
+            self.f.json_typeof(arg).eq(sge.convert("number")),
             self.cast(
                 self.if_(self.f.regexp_like(text, r"^\d+$", "g"), text, NULL),
                 op.dtype,
@@ -349,12 +349,14 @@ def visit_UnwrapJSONFloat64(self, op, *, arg):
             arg, sge.Var(this="VARIADIC ARRAY[]::TEXT[]")
         )
         return self.if_(
-            self.f.json_typeof(arg).eq("number"), self.cast(text, op.dtype), NULL
+            self.f.json_typeof(arg).eq(sge.convert("number")),
+            self.cast(text, op.dtype),
+            NULL,
         )
 
     def visit_UnwrapJSONBoolean(self, op, *, arg):
         return self.if_(
-            self.f.json_typeof(arg).eq("boolean"),
+            self.f.json_typeof(arg).eq(sge.convert("boolean")),
             self.cast(
                 self.f.json_extract_path_text(
                     arg, sge.Var(this="VARIADIC ARRAY[]::TEXT[]")
diff --git a/ibis/backends/sqlite/__init__.py b/ibis/backends/sqlite/__init__.py
index 6989bff9e3da..960729ea894d 100644
--- a/ibis/backends/sqlite/__init__.py
+++ b/ibis/backends/sqlite/__init__.py
@@ -145,14 +145,14 @@ def list_tables(
             sg.select("name")
             .from_(F.pragma_table_list())
             .where(
-                C.schema.eq(database),
-                C.type.isin("table", "view"),
+                C.schema.eq(sge.convert(database)),
+                C.type.isin(sge.convert("table"), sge.convert("view")),
                 ~(
                     C.name.isin(
-                        "sqlite_schema",
-                        "sqlite_master",
-                        "sqlite_temp_schema",
-                        "sqlite_temp_master",
+                        sge.convert("sqlite_schema"),
+                        sge.convert("sqlite_master"),
+                        sge.convert("sqlite_temp_schema"),
+                        sge.convert("sqlite_temp_master"),
                     )
                 ),
             )
diff --git a/ibis/backends/sqlite/compiler.py b/ibis/backends/sqlite/compiler.py
index c2232a885669..50cab3700728 100644
--- a/ibis/backends/sqlite/compiler.py
+++ b/ibis/backends/sqlite/compiler.py
@@ -223,19 +223,21 @@ def _visit_arg_reduction(self, func, op, *, arg, key, where):
 
     def visit_UnwrapJSONString(self, op, *, arg):
         return self.if_(
-            self.f.json_type(arg).eq("text"), self.f.json_extract_scalar(arg, "$"), NULL
+            self.f.json_type(arg).eq(sge.convert("text")),
+            self.f.json_extract_scalar(arg, "$"),
+            NULL,
         )
 
     def visit_UnwrapJSONInt64(self, op, *, arg):
         return self.if_(
-            self.f.json_type(arg).eq("integer"),
+            self.f.json_type(arg).eq(sge.convert("integer")),
             self.cast(self.f.json_extract_scalar(arg, "$"), op.dtype),
             NULL,
         )
 
     def visit_UnwrapJSONFloat64(self, op, *, arg):
         return self.if_(
-            self.f.json_type(arg).isin("integer", "real"),
+            self.f.json_type(arg).isin(sge.convert("integer"), sge.convert("real")),
             self.cast(self.f.json_extract_scalar(arg, "$"), op.dtype),
             NULL,
         )
@@ -244,7 +246,7 @@ def visit_UnwrapJSONBoolean(self, op, *, arg):
         return self.if_(
             # isin doesn't work here, with a strange error from sqlite about a
             # misused row value
-            self.f.json_type(arg).isin("true", "false"),
+            self.f.json_type(arg).isin(sge.convert("true"), sge.convert("false")),
             self.cast(self.f.json_extract_scalar(arg, "$"), dt.int64),
             NULL,
         )